Defn: To double the natural darkness of (a place). Milton.

DOUBLE-SURFACED
Dou"ble-sur"faced, a.

Defn: Having two surfaces; — said specif. of aëroplane wings or aërocurves which are covered on both sides with fabric, etc., thus completely inclosing their frames.

DOUBLET Doub"let, n. Etym: [In sense 3, OF. doublet; in sense 4, F. doublet, dim. of double double. See Double, a.]

1. Two of the same kind; a pair; a couple.

2. (Print.)

Defn: A word or words unintentionally doubled or set up a second time.

3. A close-fitting garment for men, covering the body from the neck to the waist or a little below. It was worn in Western Europe from the 15th to the 17th century.

4. (Lapidary Work)

Defn: A counterfeit gem, composed of two pieces of crystal, with a color them, and thus giving the appearance of a naturally colored gem. Also, a piece of paste or glass covered by a veneer of real stone.