2. To crush or bruise; as, to jam a finger in the crack of a door. [Colloq.]
3. (Naut.)
Defn: To bring (a vessel) so close to the wind that half her upper sails are laid aback. W. C. Russell.
JAM
Jam, n.
1. A mass of people or objects crowded together; also, the pressure from a crowd; a crush; as, a jam in a street; a jam of logs in a river.
2. An injury caused by jamming. [Colloq.]
JAM Jam, n. Etym: [Prob. fr. jam, v.; but cf. also Ar. jamad ice, jelly, jamid congealed, jamd congelation, ice.]
Defn: A preserve of fruit boiled with sugar and water; as, raspberry jam; currant jam; grape jam. Jam nut. See Check nut, under Check. — Jam weld (Forging), a butt weld. See under Butt.
JAMACINA
Jam`a*ci"na, n. Etym: [NL.]
Defn: Jamaicine.