constituent

constitutional in the structure of something (especially your physical makeup)

an artifact that is one of the individual parts of which a composite entity is made up; especially a part that can be separated from or attached to a system

“spare components for cars”

“a component or constituent element of a system”

a member of a constituency; a citizen who is represented in a government by officials for whom he or she votes

“needs continued support by constituents to be re-elected”

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”

(grammar) a word or phrase or clause forming part of a larger grammatical construction

an abstract part of something

“jealousy was a component of his character”

“two constituents of a musical composition are melody and harmony”

“the grammatical elements of a sentence”

“a key factor in her success”