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Anneal definitions

Webster's 1828 Dictionary

ANNE'AL, v.t.
1. To heat; to heat, as glass and iron for the purpose of rendering them less brittle, or to fix colors; vulgarly called nealing. This is done by heating the metal nearly to fluidity, in an oven or furnace,and suffering it to cool gradually. Metals made hard and brittle by hammering. by this process recover their malleability. The word is applied also to the baking of tiles.
2. To temper by heat; and Shenstone uses it for tempering by cold.

WordNet (r) 3.0 (2005)

v
1: bring to a desired consistency, texture, or hardness by a process of gradually heating and cooling; "temper glass" [syn: anneal, temper, normalize]

Merriam Webster's

verb Etymology: Middle English anelen to set on fire, from Old English on?lan, from on + ?lan to set on fire, burn, from ?l fire; akin to Old English ?led fire, Old Norse eldr Date: 1664 transitive verb 1. a. to heat and then cool (as steel or glass) usually for softening and making less brittle; also to cool slowly usually in a furnace b. to heat and then cool (double-stranded nucleic acid) in order to separate strands and induce combination at lower temperature with complementary strands 2. strengthen, toughen intransitive verb to be capable of combining with complementary nucleic acid by a process of heating and cooling

Oxford Reference Dictionary

v. & n. --v.tr. 1 heat (metal or glass) and allow it to cool slowly, esp. to toughen it. 2 toughen. --n. treatment by annealing. Derivatives: annealer n. Etymology: OE onælan f. on + ælan burn, bake f. al fire

Webster's 1913 Dictionary

Anneal An*neal", v. t. [imp. & p. p. Annealed; p. pr. & vb. n. Annealing.] [OE. anelen to heat, burn, AS. an?lan; an on + ?lan to burn; also OE. anelen to enamel, prob. influenced by OF. neeler, nieler, to put a black enamel on gold or silver, F. nieller, fr. LL. nigellare to blacken, fr. L. nigellus blackish, dim. of niger black. Cf. Niello, Negro.] 1. To subject to great heat, and then cool slowly, as glass, cast iron, steel, or other metal, for the purpose of rendering it less brittle; to temper; to toughen. 2. To heat, as glass, tiles, or earthenware, in order to fix the colors laid on them.

Soule's Dictionary of English Synonyms

v. a. Temper (as glass, by slow cooling), toughen.




 


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