from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A hard, shell-like covering, such as that enclosing the kernel of a peach.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A round structure located at the base of the forebrain, regulating movement and learning.
- n. A hard, shell-like covering.
- n. The shell of a nut; the stone of a drupe fruit; endocarp.
from the GNU version of the Collaborative International Dictionary of English
- n. The shell of a nut; the stone of a drupe fruit. See endocarp.
from The Century Dictionary and Cyclopedia
- n. In botany, the endocarp of a fruit when hard and stony; the shell of a nut, or the stone of a stone-fruit or drupe; also, one of the pyrenæ or apparent seeds of some drupes. See drupe and endocarp, and cut under drupe.
- n. In ornithology, the soft shell of an egg; a last layer of tough tenacious albumen deposited upon the soft white of the egg, forming a membrane in and upon which the hard shell is deposited.
- n. In anatomy, the outer zone of gray matter of the lenticular part of the corpus striatum of the brain. The claustrum separates the putamen from the cortex of the brain.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. the outer reddish part of the lenticular nucleus
Latin putāmen, that which falls off in pruning, shell, husk, from putāre, to prune.(American Heritage® Dictionary of the English Language, Fourth Edition)