ledge

ledge
In anatomy, a structure resembling a l.. SEE ALSO: shelf, lamina.
- dental l. a band of ectodermal cells growing from the epithelium of the embryonic jaws into the underlying mesenchyme; local buds from the l. give rise to the primordia of the enamel organs of the teeth. SYN: dental lamina, dental shelf, dentogingival lamina, enamel l., primary dental lamina.
- enamel l. SYN: dental l..

Medical dictionary. 2011.

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  • Ledge — (l[e^]j), n. [Akin to AS. licgan to lie, Icel. liggja; cf. Icel. l[ o]gg the ledge or rim at the bottom of a cask. See {Lie} to be prostrate.] [Formerly written {lidge}.] 1. A shelf on which articles may be laid; also, that which resembles such a …   The Collaborative International Dictionary of English

  • ledge — [ledʒ] n [Date: 1500 1600; Origin: Perhaps from legge, an early form of LAY1] 1.) a narrow flat piece of rock that sticks out on the side of a mountain or cliff ▪ We crept carefully along the narrow ledge. ▪ He leapt onto a ledge of rock. 2.) a… …   Dictionary of contemporary English

  • ledge — [ ledʒ ] noun count 1. ) a narrow surface that continues out from the side of a cliff, wall, or other surface: They were perched on a narrow ledge near the cliff top. 2. ) a narrow shelf at the bottom of a window: SILL: a window ledge …   Usage of the words and phrases in modern English

  • Ledge — may refer to:*Ridge, a geological feature *Reef, an underwater feature *Stratum, a layer of rock *Ledge (band), French electropop …   Wikipedia

  • ledge — index border, margin (outside limit) Burton s Legal Thesaurus. William C. Burton. 2006 …   Law dictionary

  • ledge — late 13c., crossbar on a door, perhaps from M.E. verb leggen to place, lay (see LAY (Cf. lay) (v.)). Sense of narrow shelf is first recorded 1550s; shelf like projection of rock is from 1550s …   Etymology dictionary

  • ledge — [n] shelf bar, bench, berm, bracket, console, edge, jut, mantle, offset, path, projection, reef, ridge, rim, route, sill, step, strip, tier, track, trail, walk, way; concepts 445,513 …   New thesaurus

  • ledge — ► NOUN 1) a narrow horizontal surface projecting from a wall, cliff, etc. 2) an underwater ridge, especially one of rocks near the seashore. ORIGIN originally denoting a strip of wood or other material fixed across a door or gate: perhaps from an …   English terms dictionary

  • ledge — [lej] n. [ME legge, prob. < base of leggen, to LAY1] 1. a shelf or shelflike projection 2. a) a projecting ridge of rocks b) such a ridge under the surface of the water near the shore 3. Mining a vein l …   English World dictionary

  • ledge — noun ADJECTIVE ▪ high ▪ wide ▪ narrow, small ▪ window ▪ cliff, mountain …   Collocations dictionary

  • ledge — kent·ledge; ledge·less; ledge·man; ledge; ledge·ment; …   English syllables

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