| Encephalous | a. (Zoöl.) Having a head; -- said of most Mollusca; -- opposed to |
| Anencephalous | |
| Lyencephalous | a. (Zool.) Pertaining to, or characteristic of, the Lyencephala. [ 1913 Webster ] |
| Macrencephalous | |
| Micrencephalous | [ Micr- + Gr. &unr_; brain. ] Having a small brain. [ 1913 Webster ] |
| Myelencephalous | a. (Zool.) Of or pertaining to the Myelencephala. [ 1913 Webster ] |
| anencephalic | (adj) characterized by partial or total absence of a brain, Syn. anencephalous |
| macrencephalic | (adj) having a large brain case, Syn. macrencephalous |