Phrase guide

reticular formation

noun · 2 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

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No pronunciation record was provided for this word.

1

noun

Meaning 1

Part of the brain that is involved in actions such as awaking/sleeping cycle, and filtering incoming stimuli to discriminate irrelevant background stimuli

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

a complex neural network in the central core of the brainstem; monitors the state of the body and functions in such processes as arousal and sleep and attention and muscle tone

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: RF

Antonyms: none provided

Broader terms: neural network, neural net

History

Etymology

No etymology was provided for this word.

Across languages

Translations

5 source translations are retained for this English entry.

  • Arabic: التَكْوِين الشَبَكِيّ (at-takwīn aš-šabakiyy) — part of brain
  • Finnish: aivoverkosto — part of brain
  • Northern Kurdish: pêkhateya torî — part of brain
  • Polish: twór siatkowaty — part of brain
  • Polish: układ siatkowaty — part of brain