Reflex definition

rēflĕks
Frequency:
Bent, turned, or thrown back; reflected.
adjective
5
2
(physiology) Being an involuntary action or response, such as a sneeze, blink, or hiccup.
adjective
2
1
A copy or reproduction.
noun
1
0
Reflex is defined as something that you do or think automatically, or a reflection.

When something is flying at your head and you instinctively close your eyes without thinking about it, this is an example of a reflex.

noun
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The definition of reflex is something done automatically without thinking about it, or something reflected back.

Hiccuping is an example of something that would be described as a reflex action.

adjective
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Produced as an automatic response or reaction.

Reflex opposition to change.

adjective
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Reflexed.
adjective
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(psychology) An unlearned or instinctive response to a stimulus.
noun
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(linguistics) A form or feature that reflects or represents an earlier, often reconstructed, form or feature having undergone phonetic or other change.
noun
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(physiology) An involuntary response to a stimulus.
noun
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0
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A person's ability to respond to new or changing stimuli.

His quick reflexes make him a good taxi driver.

noun
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Reflection, as of light.
noun
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Light or color resulting from reflection.
noun
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(physiol.) A reflex action.
noun
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Any quick, automatic or habitual response.
noun
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Ability to react quickly and effectively.

A boxer with good reflexes.

noun
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Turned, bent, or reflected back.
adjective
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0
(electronics) Designating or of a device, circuit, etc. that has two different functions.
adjective
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(geom.) Designating an angle greater than a straight angle (180°)
adjective
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Coming in reaction or reflection.

A reflex effect.

adjective
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(physiol.) 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.
adjective
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0
To bend, turn, or fold back.
verb
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To cause to undergo a reflex process.
verb
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(physiology) Being an involuntary action or response, such as a sneeze, blink, or hiccup.
adjective
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0
Bent, turned, or thrown back; reflected.
adjective
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0
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Reflexed.
adjective
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(psychology) An unlearned or instinctive response to a stimulus.
noun
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(physiology) An involuntary response to a stimulus.
noun
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A person's ability to respond to new or changing stimuli.

Quick reflexes make for a good taxi driver.

noun
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An involuntary physiological response to a stimulus, as the withdrawal of a body part from burning heat.
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An unlearned or instinctive response to a stimulus.
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See FLEX.
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An automatic response to a simple stimulus which does not require mental processing.
noun
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(linguistics) The descendant of an earlier language element, such as a word or phoneme, in a daughter language.
noun
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0
Tennyson.

On the depths of death there swims / The reflex of a human face.

noun
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adjective
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Produced automatically by a stimulus.
adjective
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(geometry, of an angle) Having greater than 180 degrees but less than 360 degrees.
adjective
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(photography) Of a camera or camera mechanism, using a mirror to reflect the image onto a ground-glass viewfinder, allowing the photographer to see it up to the moment of exposure.
adjective
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To bend, turn back or reflect.
verb
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To respond to a stimulus.
verb
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Something, such as light or heat, that is reflected.
noun
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1
An image produced by reflection.
noun
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1
A reflected image, likeness, or reproduction.
noun
0
1

Other Word Forms

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