English Vocabulary · Grade 11 Live Review Preview

11th Grade Vocabulary Words

Eleventh-grade readers work across complex arguments, literary forms, scientific models, quantitative reasoning, civic institutions, social analysis, and precise academic prose. This level emphasizes disciplinary meanings, source evaluation, rhetorical and linguistic analysis, transparent morphology, and the careful use of context and reference tools when a word has several possible senses.

This independently authored 800-word beta curriculum is arranged in twenty-three pages of up to thirty-five words. Pages containing words 1–500 include five cloze questions drawn only from that enhanced range; words 501–800 remain fully visible and editable as list pages while expanded practice is developed. Every row includes an editable subject-field label and a conservative word-study note about transparent affixes, compound structure, capitalization, or dictionary base forms. The cited sources calibrate range and difficulty only; all learner-facing definitions, examples, quizzes, and descriptions are original KSSR copy.

Please note: the vocabulary lists for grades 9~11 have been selected to ensure no overlap with the previous grade level. If the words are too specialized or difficult for you, please go back to grade levels 4~8 and review the words on those pages.

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Words 281–315 of 800
#	Word	Details	Meaning	Sample sentence
281	vestibular system	noun Study Field: Grade 11 anatomy, neuroscience, and public-health term Word study: Term structure: vestibular + system. Study the complete expression as one field-specific unit.	the inner-ear sensory system supporting balance and head-motion detection	The vestibular system helps stabilize vision while the head turns.
282	endocrine axis	noun Study Field: Grade 11 anatomy, neuroscience, and public-health term Word study: Term structure: endocrine + axis. Study the complete expression as one field-specific unit.	a linked sequence of glands and hormones regulating a body function	The endocrine axis coordinates signals between the brain and thyroid gland.
283	hypothalamic-pituitary-adrenal axis	noun Study Field: Grade 11 anatomy, neuroscience, and public-health term Word study: Term structure: hypothalamic + pituitary + adrenal + axis. Study the complete expression as one field-specific unit.	the hormone pathway coordinating the body's stress response	Prolonged stress can repeatedly activate the hypothalamic-pituitary-adrenal axis.
284	cortisol	noun Study Field: Grade 11 anatomy, neuroscience, and public-health term Word study: Base-form focus: cortisol is the dictionary headword; compare its inflected or derived forms in context.	a steroid hormone involved in stress, metabolism, and immune regulation	Cortisol levels normally follow a daily rhythm.
285	melatonin	noun Study Field: Grade 11 anatomy, neuroscience, and public-health term Word study: Base-form focus: melatonin is the dictionary headword; compare its inflected or derived forms in context.	a hormone that helps regulate the timing of sleep	Darkness stimulates melatonin release in the evening.
286	thyroxine	noun Study Field: Grade 11 anatomy, neuroscience, and public-health term Word study: Base-form focus: thyroxine is the dictionary headword; compare its inflected or derived forms in context.	a thyroid hormone that helps regulate metabolism and development	Low thyroxine levels can slow metabolic activity.
287	humoral immunity	noun Study Field: Grade 11 anatomy, neuroscience, and public-health term Word study: Term structure: humoral + immunity. Study the complete expression as one field-specific unit.	adaptive immune defense mediated mainly by antibodies in body fluids	Humoral immunity produces antibodies that bind a specific virus.
288	cell-mediated immunity	noun Study Field: Grade 11 anatomy, neuroscience, and public-health term Word study: Term structure: cell + mediated + immunity. Study the complete expression as one field-specific unit.	adaptive immune defense carried out mainly by specialized T cells	Cell-mediated immunity can destroy cells infected by a virus.
289	lymphocyte	noun Study Field: Grade 11 anatomy, neuroscience, and public-health term Word study: Base-form focus: lymphocyte is the dictionary headword; compare its inflected or derived forms in context.	a white blood cell central to adaptive immune responses	Each lymphocyte recognizes particular molecular targets.
290	macrophage	noun Study Field: Grade 11 anatomy, neuroscience, and public-health term Word study: Base-form focus: macrophage is the dictionary headword; compare its inflected or derived forms in context.	a large immune cell that engulfs material and coordinates inflammation	The macrophage swallowed bacteria at the wound.
291	complement system	noun Study Field: Grade 11 anatomy, neuroscience, and public-health term Word study: Term structure: complement + system. Study the complete expression as one field-specific unit.	blood proteins that enhance immune attack and removal of microbes	The complement system marked the bacterium for destruction.
292	antimicrobial resistance	noun Study Field: Grade 11 anatomy, neuroscience, and public-health term Word study: Term structure: antimicrobial + resistance. Study the complete expression as one field-specific unit.	the ability of microbes to survive drugs designed to kill or control them	Unnecessary antibiotic use accelerates antimicrobial resistance.
293	nosocomial infection	noun Study Field: Grade 11 anatomy, neuroscience, and public-health term Word study: Term structure: nosocomial + infection. Study the complete expression as one field-specific unit.	an infection acquired during care in a hospital or similar facility	Strict hand hygiene reduced nosocomial infection in the ward.
294	case fatality rate	noun Study Field: Grade 11 anatomy, neuroscience, and public-health term Word study: Term structure: case + fatality + rate. Study the complete expression as one field-specific unit.	the proportion of diagnosed cases that result in death	Early treatment lowered the disease's case fatality rate.
295	attack rate	noun Study Field: Grade 11 anatomy, neuroscience, and public-health term Word study: Term structure: attack + rate. Study the complete expression as one field-specific unit.	the proportion of an exposed group that becomes ill during an outbreak	Investigators calculated the attack rate among guests who ate the salad.
296	prevalence ratio	noun Study Field: Grade 11 anatomy, neuroscience, and public-health term Word study: Term structure: prevalence + ratio. Study the complete expression as one field-specific unit.	a comparison of condition prevalence between two groups	The prevalence ratio showed asthma was twice as common in the exposed group.
297	incidence rate	noun Study Field: Grade 11 anatomy, neuroscience, and public-health term Word study: Term structure: incidence + rate. Study the complete expression as one field-specific unit.	the rate at which new cases occur over person-time at risk	The study reported an incidence rate of five cases per thousand person-years.
298	relative risk	noun Study Field: Grade 11 anatomy, neuroscience, and public-health term Word study: Term structure: relative + risk. Study the complete expression as one field-specific unit.	the ratio of outcome risk in an exposed group to risk in a comparison group	A relative risk above one indicated greater illness among exposed workers.
299	odds ratio	noun Study Field: Grade 11 anatomy, neuroscience, and public-health term Word study: Term structure: odds + ratio. Study the complete expression as one field-specific unit.	a ratio comparing the odds of an outcome or exposure between groups	The case-control study used an odds ratio to assess the association.
300	outbreak investigation	noun Study Field: Grade 11 anatomy, neuroscience, and public-health term Word study: Term structure: outbreak + investigation. Study the complete expression as one field-specific unit.	a systematic inquiry into the source, spread, and control of clustered illness	The outbreak investigation traced infections to one cooling tower.
301	kinematics	noun Study Field: Grade 11 physics, astronomy, climate, and engineering term Word study: Base-form focus: kinematics is the dictionary headword; compare its inflected or derived forms in context.	the description of motion without analyzing the forces that cause it	Kinematics relates the car's position, velocity, and acceleration over time.
302	dynamics	noun Study Field: Grade 11 physics, astronomy, climate, and engineering term Word study: Base-form focus: dynamics is the dictionary headword; compare its inflected or derived forms in context.	the study of motion in relation to forces and mass	Dynamics explains how the applied force changes the cart's motion.
303	rotational kinetic energy	noun Study Field: Grade 11 physics, astronomy, climate, and engineering term Word study: Term structure: rotational + kinetic + energy. Study the complete expression as one field-specific unit.	energy an object possesses because it is rotating	The spinning flywheel stores rotational kinetic energy.
304	simple harmonic motion	noun Study Field: Grade 11 physics, astronomy, climate, and engineering term Word study: Term structure: simple + harmonic + motion. Study the complete expression as one field-specific unit.	repeating motion driven by a restoring force proportional to displacement	A small mass on an ideal spring approximates simple harmonic motion.
305	Hooke's law	proper noun Study Field: Grade 11 physics, astronomy, climate, and engineering term Word study: Term structure: Hooke's + law. Study the complete expression as one field-specific unit.	the rule that spring force is proportional and opposite to displacement within an elastic range	Hooke's law predicts twice the force for twice the stretch.
306	spring constant	noun Study Field: Grade 11 physics, astronomy, climate, and engineering term Word study: Term structure: spring + constant. Study the complete expression as one field-specific unit.	a measure of a spring's stiffness	The stiffer spring has the larger spring constant.
307	damping	noun Study Field: Grade 11 physics, astronomy, climate, and engineering term Word study: Base-form focus: damping is the dictionary headword; compare its inflected or derived forms in context.	the gradual loss of oscillation energy through resistive forces	Air resistance provides damping that reduces the pendulum's swing.
308	driven oscillation	noun Study Field: Grade 11 physics, astronomy, climate, and engineering term Word study: Term structure: driven + oscillation. Study the complete expression as one field-specific unit.	repeated motion maintained by an external periodic force	The motor creates a driven oscillation in the platform.
309	node	noun Study Field: Grade 11 physics, astronomy, climate, and engineering term Word study: Base-form focus: node is the dictionary headword; compare its inflected or derived forms in context.	a point on a standing wave that remains at zero displacement	The string stays still at each node.
310	antinode	noun Study Field: Grade 11 physics, astronomy, climate, and engineering term Word study: Base-form focus: antinode is the dictionary headword; compare its inflected or derived forms in context.	a point on a standing wave with maximum displacement	The string moves most widely at the antinode.
311	fundamental frequency	noun Study Field: Grade 11 physics, astronomy, climate, and engineering term Word study: Term structure: fundamental + frequency. Study the complete expression as one field-specific unit.	the lowest natural frequency at which a system can oscillate	The long pipe has a lower fundamental frequency than the short pipe.
312	harmonic	noun Study Field: Grade 11 physics, astronomy, climate, and engineering term Word study: Base-form focus: harmonic is the dictionary headword; compare its inflected or derived forms in context.	a frequency that is a whole-number multiple of a fundamental frequency	The second harmonic vibrates at twice the fundamental frequency.
313	beat frequency	noun Study Field: Grade 11 physics, astronomy, climate, and engineering term Word study: Term structure: beat + frequency. Study the complete expression as one field-specific unit.	the rate of loudness variation produced by two nearby frequencies	Two tones at 440 and 443 hertz create a beat frequency of three hertz.
314	sound intensity	noun Study Field: Grade 11 physics, astronomy, climate, and engineering term Word study: Term structure: sound + intensity. Study the complete expression as one field-specific unit.	sound power transmitted per unit area	Sound intensity decreases as the wave spreads outward.
315	index of refraction	noun Study Field: Grade 11 physics, astronomy, climate, and engineering term Word study: Term structure: index + of + refraction. Study the complete expression as one field-specific unit.	a ratio describing how slowly light travels in a material	Diamond has a high index of refraction.

Vocabulary reading and practice

Page 9 vocabulary review

Review five selected words from page 9.

Vocabulary quiz

Complete 5 review questions for this page.

1. The ___ marked the bacterium for destruction.

Answer: complement system

2. A small mass on an ideal spring approximates ___.

Answer: simple harmonic motion

3. Unnecessary antibiotic use accelerates ___.

Answer: antimicrobial resistance

4. ___ predicts twice the force for twice the stretch.

Answer: Hooke's law

5. Strict hand hygiene reduced ___ in the ward.

Answer: nosocomial infection

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11th Grade Vocabulary Words

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