neuropile vs nervous tissue

neuropile and nervous tissue both are nouns.

Word	Noun	Adjective	Verb	Adverb
neuropile	Yes	No	No	No
nervous tissue	Yes	No	No	No

As nouns, nervous tissue is a hypernym of neuropile; that is, nervous tissue is a word with a broader meaning than neuropile:

neuropile: 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
nervous tissue: tissue composed of neurons

Other hypernyms of neuropile include nerve tissue.

neuropile (noun)	nervous tissue (noun)
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	tissue composed of neurons