conchylium
From LSJ
Latin > English (Lewis & Short)
conchȳlĭum: ii, n., = κογχύλιον>.
I A shell-fish, a testaceous animal, in gen., Plin. 9, 29, 46, § 86; Cic. Div. 2, 14, 33.—
II Specif.
A An oyster, Cic. Pis. 27, 67; Hor. Epod. 2, 49; id. S. 2, 2, 74; 2, 4, 30; 2, 8, 27; Cels. 2, 18.—
2 A kind of purple shell-fish: color conchyli, Lucr. 6, 1074; Cat. 64, 49 Sillig N. cr.; Col. 8, 17, 9; Vitr. 7, 13.—
B Meton.
a Purple color, purple, Cic. Verr. 2, 4, 26, § 59; Plin. 9, 36, 60, § 127 sq.—
b Purple garments, purple, Quint. 1, 2, 6; Juv. 3, 81; 8, 101 al.