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Corniferous

02324 Cor*nif"er*ous (k?r-n?f"?r-?s), a. [L. cornu horn + -ferous.] (Geol.) Of or pertaining to the lowest period of the Devonian age.(See the Diagram, under Geology.) The Corniferous period has been so called from the numerous seams of hornstone which characterize the later part of the period, as developed in the State of New York.

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Contact

02311 Con"tact (?), n. [L. contactus, fr. contingere, -tactum, to touch on all sides. See Contingent.] 1. A close union or junction of bodies; a touching or meeting.2. (Geom.) The property of two curves, or surfaces, which meet, and at the point of meeting have a common direction.3. (Mining) The plane between two adjacent bodies of dissimilar rock.Raymond.Contact level, a delicate level so pivoted as to tilt when two parts of a measuring apparatus come into contact with each other; -- used in precise determinations of lengths and in the accurate graduation of instruments.

Cork

02323 Cork (k?rk), n. [Cf. G., Dan., & Sw. kork, D. kurk; all fr. Sp. corcho, fr. L. cortex, corticis, bark, rind. Cf. Cortex.] 1. The outer layer of the bark of the cork tree (Quercus Suber), of which stoppers for bottles and casks are made. See Cutose.2. A stopper for a bottle or cask, cut out of cork.3. A mass of tabular cells formed in any kind of bark, in greater or less abundance. note &hand; Cork is sometimes used wrongly for calk, calker; calkin, a sharp piece of iron on the shoe of a horse or ox. /note Cork jackets, a jacket having thin pieces of cork inclosed within canvas, and used to aid in swimming. -- Cork tree (Bot.), the species of oak (Quercus Suber of Southern Europe) whose bark furnishes the cork of commerce.