Webster's English Dictionary

Enter the word to look up:

forebrain

fore.brain \'fo-r-.bra-n, 'fo.r-\ n 1: the anterior of the three primary 
   divisions of the developing vertebrate  brain 2a: the part of the brain of 
   the adult that develops from the embryonic for ebrain and includes the 
   telencephalon and diencephalon 2b: TELENCEPHALON