component part is a noun meaning "something determined in relation to something that includes it". It carries one recorded sense.
something determined in relation to something that includes it
“he wanted to feel a part of something bigger than himself”
“I read a portion of the manuscript”
“the smaller component is hard to reach”
“the animal constituent of plankton”
Definitions, synonyms and semantic relations for component part come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.