WordReference Random House Unabridged Dictionary of American English © 2026
hy′dro•cin•nam′ic ac′id
(hī′drō si nam′ik, -drə sin′ə mik, hī′-),USA pronunciation
- Chemistrya white crystalline compound, C9H10O2, with a floral odor, used in perfumes and flavoring.
- hydro-2 + cinnamic