Standard Lemma guide

reflex

adj · noun · verb · 15 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • /ˈɹiːflɛks/
  • UK: Recorded audio is listed in the source snapshot.
  • UK: Recorded audio is listed in the source snapshot.
  • /ɹɪˈflɛks/
  • CMU ARPABET: R IY1 F L EH0 K S Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

adj

Meaning 1

Bent, turned back or reflected.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

adj

Meaning 2

Produced automatically by a stimulus.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

adj

Meaning 3

Having greater than 180 degrees but less than 360 degrees.

Definition source: English Wiktionary via Wiktextract

Topics: geometry, mathematics, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

adj

Meaning 4

Illuminated by light reflected from another part of the same picture.

Definition source: English Wiktionary via Wiktextract

Qualifier: painting

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

5

noun

Meaning 5

An automatic response to a simple stimulus which does not require mental processing.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

6

noun

Meaning 6

The descendant of an earlier language element, such as a word or phoneme, in a daughter language.

Definition source: English Wiktionary via Wiktextract

Topics: human-sciences, linguistics, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: etymon

7

noun

Meaning 7

The ancestor word corresponding to a descendant.

Definition source: English Wiktionary via Wiktextract

Usage: rare

Topics: human-sciences, linguistics, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

8

noun

Meaning 8

The descendant of anything from an earlier time, such as a cultural myth.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

9

noun

Meaning 9

A reflection or an image produced by a reflection; the light reflected from an illuminated surface to one in shade.

Definition source: English Wiktionary via Wiktextract

Topics: arts, hobbies, lifestyle, photography

Examples

  • A reflex camera uses a mirror to reflect the image onto a ground-glass viewfinder.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

10

verb

Meaning 10

To bend back or turn back over itself.

Definition source: English Wiktionary via Wiktextract

Usage: transitive

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

11

verb

Meaning 11

To reflect (light, sight, etc.).

Definition source: English Wiktionary via Wiktextract

Usage: obsolete, transitive

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

12

verb

Meaning 12

To reflect or mirror (an object), to show the image of.

Definition source: English Wiktionary via Wiktextract

Usage: obsolete, transitive

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

13

verb

Meaning 13

To cast (beams of light) on something.

Definition source: English Wiktionary via Wiktextract

Usage: obsolete, transitive

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

14

verb

Meaning 14

To respond to a stimulus.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

15

noun

Meaning 15

an automatic instinctive unlearned reaction to a stimulus

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: reflex response, reflex action, instinctive reflex, innate reflex, inborn reflex, unconditioned reflex, physiological reaction

Antonyms: none provided

Broader terms: reaction, response

Narrower terms: accommodation reflex, Babinski, Babinski reflex, Babinski sign, belch, belching, burp, burping, eructation, blink, eye blink, blinking, wink, winking, nictitation, nictation, blush, flush, vomit, vomiting, emesis, regurgitation, disgorgement, puking, defecation reflex, rectal reflex, yawn, yawning, oscitance, oscitancy, electric shock, electrical shock, shock, fart, farting, flatus, wind, breaking wind, gulp, gulping, knee jerk, knee-jerk reflex, patellar reflex, light reflex, pupillary reflex, miosis, myosis, mydriasis, micturition reflex, pharyngeal reflex, gag reflex, pilomotor reflex, gooseflesh, goose bump, goosebump, goose pimple, goose skin, horripilation, plantar reflex, rooting reflex, startle, jump, start, stretch reflex, myotactic reflex, suckling reflex, tremble, shiver, shake, sneeze, sneezing, sternutation, hiccup, hiccough, singultus

History

Etymology

From Late Latin reflexus, past participle of reflectere (“to bend back”), equivalent to re- + flex. Photography sense is from noun sense meaning “reflection”. Compare English reflect.

Across languages

Translations

46 source translations are retained for this English entry.

  • Māori: rāwaho — of an angle
  • Tagalog: pabalik — of an angle
  • Bulgarian: огледален (ogledalen) — of a type of camera
  • Hungarian: tükörreflexes — of a type of camera
  • Spanish: réflex — of a type of camera
  • Arabic: مُنْعَكَس (munʕakas) — automatic response
  • Bulgarian: рефле́кс (refléks) — automatic response
  • Catalan: reflex — automatic response
  • Chinese Mandarin: 反射 (fǎnshè) — automatic response
  • Crimean Tatar: refleks — automatic response
  • Czech: reflex — automatic response
  • Dutch: reflex — automatic response
  • Esperanto: reflekso — automatic response
  • Finnish: refleksi — automatic response
  • Finnish: heijaste — automatic response
  • French: réflexe — automatic response
  • German: Reflex — automatic response
  • Greek: αντανακλαστικό (antanaklastikó) — automatic response
  • Hindi: प्रतिवर्त क्रिया (prativart kriyā) — automatic response
  • Italian: riflesso — automatic response
  • Japanese: 反射 (hansha) — automatic response
  • Kazakh: рефлекс (refleks) — automatic response
  • Korean: 반사 (bansa) — automatic response
  • Māori: kahuki — automatic response
  • Māori: whetau — automatic response
  • Polish: odruch — automatic response
  • Polish: refleks — automatic response
  • Polish: automat — automatic response
  • Portuguese: reflexo — automatic response
  • Russian: рефле́кс (refléks) — automatic response
  • Slovene: refleks — automatic response
  • Spanish: reflejo — automatic response
  • Swedish: reflex — automatic response
  • Tagalog: balikusa — automatic response
  • Turkish: refleks — automatic response
  • Vietnamese: phản xạ — automatic response
  • Armenian: արտացոլում (artacʻolum) — the descendant of an earlier language element, such as a word or phoneme, in a daughter language
  • Dutch: reflex — the descendant of an earlier language element, such as a word or phoneme, in a daughter language
  • French: continuateur — the descendant of an earlier language element, such as a word or phoneme, in a daughter language
  • German: Kontinuante — the descendant of an earlier language element, such as a word or phoneme, in a daughter language
  • German: Fortsetzer — the descendant of an earlier language element, such as a word or phoneme, in a daughter language
  • Italian: riflesso — the descendant of an earlier language element, such as a word or phoneme, in a daughter language
  • Italian: continuatore — the descendant of an earlier language element, such as a word or phoneme, in a daughter language
  • Polish: kontynuant — the descendant of an earlier language element, such as a word or phoneme, in a daughter language
  • Spanish: reflejo — the descendant of an earlier language element, such as a word or phoneme, in a daughter language
  • Spanish: continuador — the descendant of an earlier language element, such as a word or phoneme, in a daughter language
Real reading context

reflex in complete knowledge articles