constituent

Short definition from Wiktionary

Adjective

1. 1
   Being a part or component of a whole.
2. 2
   Constitutive or constituting.
3. 3
   Constitutive or constituting: Authorized to make a constitution.

Noun

1. 1
   A part, or component of a whole
2. 2
   A person or thing which constitutes, determines, or constructs
3. 3
   A resident of an area represented by an elected official, particularly in relation to that official.
4. 4
   A voter who supports a (political) candidate; a supporter of a cause.
5. 5
   One who appoints another to act for him as attorney in fact
6. 6
   A functional element of a phrase or clause