Webster's Revised Unabridged Dictionary · 1913

monocarbonic

monocarbonic , adjective

[Mono- + carbonic.]

(Chemistry) Containing one carboxyl group; as, acetic acid is a monocarbonic acid. The more common term is monocarboxylic. Contrasted with dicarboxylic, tricarboxylic, etc.

Also: monocarboxylic