Webster's Revised Unabridged Dictionary · 1913

Emerald

Emerald , noun

[Old English emeraude, Old French esmeraude, esmeralde, French émeraude, Latin smaragdus, from Greek {not transcribed}; compare {not transcribed}kr. marakata.]

1.
(Mineralogy) A precious stone of a rich green color, a variety of beryl. See Beryl.
2.
(Printing) A kind of type, in size between minion and nonpareil. It is used by English printers.

This line is printed in the type called emerald.

Emerald , adjective

Of a rich green color, like that of the emerald.
Emerald meadows. — Byron
Collocations (5)
Emerald fish (Zoology) , 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 (Mineralogy) , See Hiddenite.
Emerald nickel (Mineralogy) , See Zaratite.