adherent

noun

1. a person who follows or upholds a leader, cause, etc.; supporter; follower.

adjective

2. sticking; clinging; adhering: an adherent substance.
3. bound by contract or other formal agreement: the nations adherent to the Geneva Convention.
4. Biology. adnate.
5. Grammar. standing before and modifying a noun; attributive.

noun

1. (usually foll by of) a supporter or follower

adjective

2. sticking, holding fast, or attached

adj.

late 14c., from Old French adherent or directly from Latin adhaerentem (nominative adhaerens), present participle of adhaerere “stick to,” from ad- “to” (see ad-) + haerere “to stick” (see hesitation).

n.

“follower, associate, supporter,” early 15c., from Old French adherent or directly from Latin adhaerentem (see adherent (adj.)). Meaning “adhesive substance” is from 1912.