central body vs cytoplasm

central body and cytoplasm both are nouns.

Word	Noun	Adjective	Verb	Adverb
central body	Yes	No	No	No
cytoplasm	Yes	No	No	No

As nouns, cytoplasm is a hypernym of central body; that is, cytoplasm is a word with a broader meaning than central body:

central body: small region of cytoplasm adjacent to the nucleus; contains the centrioles and serves to organize the microtubules
cytoplasm: the protoplasm of a cell excluding the nucleus; is full of proteins that control cell metabolism

Other hypernyms of central body include cytol.

central body (noun)	cytoplasm (noun)
small region of cytoplasm adjacent to the nucleus; contains the centrioles and serves to organize the microtubules	the protoplasm of a cell excluding the nucleus; is full of proteins that control cell metabolism