Con‐stit″u‐ent, n. 1. The person or thing which constitutes, determines, or constructs.
Their first composure and origination require a higher and nobler constituent than chance.
Sir M. Hale
2. That which constitutes or composes, as a part, or an essential part; a component; an element.
We know how to bring these constituents together, and to cause them to form water.
Tyndall.
3. One for whom another acts; especially, one who is represented by another in a legislative assembly; — correlative to representative.
The electors in the district of a representative in Congress, or in the legislature of a State, are termed his constituents.
Abbot.
To appeal from the representatives to the constituents.
Macaulay.
4. (Law) A person who appoints another to act for him as attorney in fact. Burrill.