FLAT a.
; vocal; -- applied to any one of the sonant or vocal consonants, as distinguished from a nonsonant (or sharp) consonant. Flat arch. (Arch.) See under Arch, n., 2. (b). -- Flat cap, cap paper, not folded. See under Paper. -- Flat chasing, in fine art metal working, a mode of ornamenting silverware, etc., producing fi…