Constituent (noun)

1. A member or supporter of a political constituency.
2. A component or element of a whole.
3. A citizen of a particular constituency who is entitled to vote.

Origin:

Late 16th century: from latin constituent- 'making firm, establishing', from the verb constituere, from con- 'together' + statuere 'set up'.

Examples:

1. The constituents of the senator were happy with her policies.
2. The constituents of the alloy were carefully chosen for their properties.
3. The constituents of the food were carefully chosen for their nutritional value.
4. The constituents of the community were invited to the town hall meeting.
5. The constituents of the paint were chosen for their durability and resistance to fading.