Defn: The larva of any geometrid moth, as the cankeworm; a geometer; a measuring worm.

SPAR
Spar, n. Etym: [AS. spær in spærstan chalkstone; akin to MHG. spar,
G. sparkalk plaster.] (Min.)

Defn: An old name for a nonmetallic mineral, usually cleavable and somewhat lustrous; as, calc spar, or calcite, fluor spar, etc. It was especially used in the case of the gangue minerals of a metalliferous vein. Blue spar, Cube spar, etc. See under Blue, Cube, etc.

SPAR
Spar, n. Etym: [OE. sparre; akin to D. spar, G. sparren, OHG. sparro,
Dan.& Sw. sparre, Icel. sparri; of uncertain origin. Spar, v. t. ]

1. (Naut.)

Defn: A general term any round piece of timber used as a mast, yard, boom, or gaff.

2. (Arch.)

Defn: Formerly, a piece of timber, in a general sense; — still applied locally to rafters.

3. The bar of a gate or door. [Obs.] Chaucer. Spar buoy (Naut.), a buoy anchored by one end so that the other end rises above the surface of the water. — Spar deck (Naut.), the upper deck of a vessel; especially, in a frigate, the deck which is continued in a straight line from the quarter-deck to the forecastle, and on which spare spars are usually placed. See under Deck. — Spar torpedo (Naut.), a torpedo carried on the end of a spar usually projecting from the bow of a vessel, and intended to explode upon contact with an enemy's ships.

SPAR
Spar, v. t. Etym: [OE. sparren, AS. sparrian; akin to G. sperren,
Icel. sperra; from the noun. sq. root171. See Spara beam, bar.]