Jam (?), n. [Per. or Hind. jamah garment, robe.]
A kind of frock for children.
© Webster 1913.
Jam, n. Mining
See Jamb.
© Webster 1913.
Jam, v. t. [imp. & p. p. Jammed (?); p. pr. & vb. n. Jamming.] [Either fr. jamb, as if squeezed between jambs, or more likely from the same source as champ See Champ.]
1.
To press into a close or tight position; to crowd; to squeeze; to wedge in.
The . . . jammed in between two rocks.
De Foe.
2.
To crush or bruise; as, to jam a finger in the crack of a door.
[Colloq.]
3. Naut.
To bring (a vessel) so close to the wind that half her upper sails are laid aback.
W. C. Russell.
© Webster 1913.
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.]
© Webster 1913.
Jam, n. [Prob. fr. jam, v.; but cf. also Ar. jamad ice, jelly, jamid congealed, jamd congelation, ice.]
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.
© Webster 1913.