'aquamarine' definitions:

Definition of 'aquamarine'

(from WordNet)
noun
A transparent variety of beryl that is blue green in color
noun
A shade of blue tinged with green [syn: greenish blue, aqua, aquamarine, turquoise, cobalt blue, peacock blue]

Definition of 'aquamarine'

From: GCIDE
  • Beryl \Ber"yl\ (b[e^]r"[i^]l), n. [F. b['e]ryl, OF. beril, L. beryllus, Gr. bh`ryllos, prob. fr. Skr. vai[dsdot][=u]rya. Cf. Brilliant.] (Min.) A mineral of great hardness, and, when transparent, of much beauty. It occurs in hexagonal prisms, commonly of a green or bluish green color, but also yellow, pink, and white. It is a silicate of aluminum and beryllium. The aquamarine is a transparent, sea-green variety used as a gem. The emerald is another variety highly prized in jewelry, and distinguished by its deep color, which is probably due to the presence of a little oxide of chromium. [1913 Webster]