The Collaborative International Dictionary
Encephalos
Encephalos \En*ceph"a*los\, n. [NL., fr. Gr. 'egke`falos; 'en in + kefalh` head.] (Anat.) The encephalon.
In man the encephalos reaches its full size about seven
years of age.
--Sir W.
Hamilton.
Wiktionary
encephalos
n. (context anatomy English) The encephalon.