5. (Mach.) (a) A metal or plate (often one of a pair) so cut or shaped as to give a certain desired form to, or impress any desired device on, an object or surface, by pressure or by a blow; used in forging metals, coining, striking up sheet metal, etc. (b) A perforated block, commonly of hardened steel used in connection with a punch, for punching holes, as through plates, or blanks from plates, or for forming cups or capsules, as from sheet metal, by drawing. (c) A hollow internally threaded screw-cutting tool, made in one piece or composed of several parts, for forming screw threads on bolts, etc.; one of the separate parts which make up such a tool.
Cutting die (Mech.), a thin, deep steel frame, sharpened to a cutting edge, for cutting out articles from leather, cloth, paper, etc. -- The die is cast, the hazard must be run; the step is taken, and it is too late to draw back; the last chance is taken.
Di*e"cian (?), a., Di*e"cious (&?;), a. (Bot.) See Dician, and Dicious.
Di*e"dral (?), a. The same as Dihedral.
||Di`e*ge"sis (?), n. [NL., fr. Gr. &?;, fr. &?; to narrate; dia` through + &?; to lead.] A narrative or history; a recital or relation.
Di`e*lec"tric (?), n. [Pref. dia- + electric.] (Elec.) Any substance or medium that transmits the electric force by a process different from conduction, as in the phenomena of induction; a nonconductor. separating a body electrified by induction, from the electrifying body.
||Di*el"y*tra (?), n. (Bot.) See Dicentra.
||Di`en*ceph"a*lon (?), n. [NL. See Dia-, and Encephalon.] (Anat.) The interbrain or thalamencephalon; -- sometimes abbreviated to dien. See Thalamencephalon.
||Di*er"e*sis (?), n. [NL.] Same as Diæresis.
Die"sink`er (?), n. An engraver of dies for stamping coins, medals, etc.
Die"sink`ing, n. The process of engraving dies.
||Di"es I"ræ (?). Day of wrath; -- the name and beginning of a famous mediæval Latin hymn on the Last Judgment.
||Di"e*sis (?), n.; pl. Dieses (#). [NL., fr. Gr. &?;, fr. &?; to let go through, dissolve; dia` through + &?; to let go, send.] 1. (Mus.) A small interval, less than any in actual practice, but used in the mathematical calculation of intervals.