noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   The forebrain.

   "Holonym: encephalon"

2. 2
   the anterior portion of the brain; the part of the brain that develops from the anterior part of the neural tube wordnet

Synonyms

All synonyms

forebrainforebrain

Etymology

From proso- + encephalon. proso- is from Ancient Greek πρόσω (prósō).

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.