Emerald \Em"er*ald\, n. [OE. emeraude, OF. esmeraude, esmeralde, F. ['e]meraude, L. smaragdus, fr. Gr. ?; cf. ?kr. marakata.]

1. (Min.) A precious stone of a rich green color, a variety of beryl. See Beryl.

2. (Print.) A kind of type, in size between minion and nonpare?l. It is used by English printers.

Note: [hand] This line is printed in the type called emerald.

Source: Webster's Revised Unabridged Dictionary (1913)
 

Emerald \Em"er*ald\, a. Of a rich green color, like that of the emerald. ``Emerald meadows.'' --Byron.

Emerald fish (Zo["o]l.), a fish of the Gulf of Mexico (Gobionellus oceanicus), remarkable for the brilliant green and blue color of the base of the tongue; -- whence the name; -- called also esmeralda.

Emerald green, a very durable pigment, of a vivid light green color, made from the arseniate of copper; green bice; Scheele's green; -- also used adjectively; as, emerald green crystals.

Emerald Isle, a name given to Ireland on account of the brightness of its verdure.

Emerald spodumene, or Lithia emerald. (Min.) See Hiddenite.

Emerald nickel. (Min.) See Zaratite.

Source: Webster's Revised Unabridged Dictionary (1913)
 

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 aluminium and glucinum (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.

Source: Webster's Revised Unabridged Dictionary (1913)