n. One of the delicate, ultimate branches of a nerve-cell process.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. the complex network of unmyelinated axones, dendrites, and glial branches that form the bulk of the central nervous system's grey matter and in which nerve cell bodies are embedded
Word Usage
"Astrocytes (white arrowheads), neuropile (dashed circle), and a neuron (yellow arrow) are indicated."