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, v. t. [OE. sparren, AS. sparrian; akin to G. sperren, Icel.
sperra; from the noun. √171. See Spara beam, bar.] 1. To bolt; to
bar. [Obs.] Chaucer.