Reflex Definition

rēflĕks
reflexes
adjective
Designating or of an involuntary action, as a sneeze, resulting from a stimulus that is carried by an afferent nerve to a nerve center and the response that is reflected along an efferent nerve to some muscle or gland.
Webster's New World
Turned, bent, or reflected back.
Webster's New World
Coming in reaction or reflection.
A reflex effect.
Webster's New World
Reflexed.
American Heritage Medicine
Designating or of a device, circuit, etc. that has two different functions.
Webster's New World
noun
reflexes
A person's ability to respond to new or changing stimuli.
Quick reflexes make for a good taxi driver.
American Heritage Medicine
Reflection, as of light.
Webster's New World
Any quick, automatic or habitual response.
Webster's New World
An unlearned or instinctive response to a stimulus.
American Heritage
Light or color resulting from reflection.
Webster's New World
Synonyms:
verb

To respond to a stimulus.

Wiktionary
To bend, turn, or fold back.
Webster's New World
To cause to undergo a reflex process.
Webster's New World

Other Word Forms of Reflex

Noun

Singular:
reflex
Plural:
reflexes

Origin of Reflex

  • From Middle English reflexen to refract light, bend back from Latin reflexus past participle of reflectere to bend back reflect

    From American Heritage Dictionary of the English Language, 5th Edition

  • From Late Latin reflexus, past participle of reflectere (“to bend back").

    From Wiktionary

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