|a children's mummer's parade, as on the Fourth of July, with prizes for the best costumes.|
|the offspring of a zebra and a donkey.|
diencephalon di·en·ceph·a·lon (dī'ěn-sěf'ə-lŏn', -lən)
The posterior part of the prosencephalon, composed of the epithalamus, the dorsal thalamus, the subthalamus, and the hypothalamus. Also called betweenbrain, interbrain.