HETEROCYCLE Scrabble 21 Words With Friends 22 Definition noun a compound containing a heterocyclic ring. — synonyms: heterocyclic_compound, heterocyclic noun a ring of atoms of more than one kind. — synonyms: heterocyclic_ring See all 222 words you can make from HETEROCYCLE → 11-letter words Words starting with H Words ending with E ← Unscramble different letters