Standard Lemma guide

effector

noun · 7 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.

  • ĭ-fĕk′tər
  • Australian, Received-Pronunciation: /ɪˈfek.tə/
  • Australian, Received-Pronunciation, also: /ɪˈfɛk.tə/
  • Canada, General-American: /ɪˈfɛk.təɹ/
  • US: Recorded audio is listed in the source snapshot.
  • New-Zealand: /əˈfek.tə/
  • Scotland: /ɪˈfɛk.təɾ/
  • India: /ɪˈfɛ(ː)k.ʈɜː(ɾ)/
  • India: /ɪˈfɛ(ː)k.ʈəɾ/
  • rhymes with -ɛktə(ɹ)
  • CMU ARPABET: IH0 F EH1 K T ER0 Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

noun

Meaning 1

Any muscle, organ etc. that can respond to a stimulus from a nerve.

Definition source: English Wiktionary via Wiktextract

Topics: biology, natural-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

The part of a nerve that carries a stimulus to a muscle etc.

Definition source: English Wiktionary via Wiktextract

Topics: biology, natural-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

Any small molecule that effects the function of an enzyme by binding to an allosteric site.

Definition source: English Wiktionary via Wiktextract

Topics: biology, natural-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

noun

Meaning 4

An actuator.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

5

noun

Meaning 5

an organ (a gland or muscle) that becomes active in response to nerve impulses

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: receptor

Broader terms: organ

6

noun

Meaning 6

a nerve fiber that terminates on a muscle or gland and stimulates contraction or secretion

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: nerve fiber, nerve fibre

7

noun

Meaning 7

one who brings about a result or event; one who accomplishes a purpose

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: effecter

Antonyms: none provided

Broader terms: person, individual, someone, somebody, mortal, soul

History

Etymology

From effect + -or.

Real reading context

effector in complete knowledge articles