Meaning of REFLEX in English

REFLEX

I. ˈrē-ˌfleks noun

Etymology: Latin reflexus, past participle of reflectere to reflect

Date: 1508

1.

a. archaic : reflected heat, light, or color

b. : a mirrored image

c. : a copy exact in essential or peculiar features

2.

a. : an automatic and often inborn response to a stimulus that involves a nerve impulse passing inward from a receptor to a nerve center and thence outward to an effector (as a muscle or gland) without reaching the level of consciousness — compare habit 7

b. : the process that culminates in a reflex and comprises reception, transmission, and reaction — called also reflex action

c. plural : the power of acting or responding with adequate speed

d. : a way of thinking or behaving

3. : a linguistic element (as a word or sound) or system (as writing) that is derived from a prior and especially an older element or system

boat is the reflex of Old English bāt

II. adjective

Etymology: Latin reflexus

Date: 1649

1. : directed back on the mind or its operations : introspective

2. : reflexed

3. : produced or carried out in reaction, resistance, or return

4. of an angle : being between 180° and 360°

5. : of, relating to, or produced by a reflex without intervention of consciousness

• re·flex·ly adverb

Merriam-Webster's Collegiate English vocabulary.      Энциклопедический словарь английского языка Merriam Webster.