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(), n.[Per. or Hind. jmah garment, robe.] A kind of frock for children. Jam n.(Mining) See Jamb. 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. 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 n.[Prob. fr. jam, v.; but cf. also Ar. jamad ice, jelly, jmid 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. スポンサード リンク
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