annealing, tempering
(noun) hardening something by heat treatment
Source: WordNet® 3.1
annealing (countable and uncountable, plural annealings)
The heating of solid metal or glass to high temperatures and cooling it slowly so that its particles arrange into a defined lattice.
• tempering
annealing
present participle of anneal
Source: Wiktionary
An*neal"ing, n.
1. The process used to render glass, iron, etc., less brittle, performed by allowing them to cool very gradually from a high heat.
2. The burning of metallic colors into glass, earthenware, etc.
An*neal", v. t. [imp. & p. p. Annealed; p. pr. & vb. n. Annealing.] Etym: [OE. anelen to heat, burn, AS. an; an on + 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.
Source: Webster’s Unabridged Dictionary 1913 Edition
9 January 2025
(noun) (obstetrics) position of the fetus in the uterus relative to the birth canal; “Cesarean sections are sometimes the result of abnormal presentations”
The world’s most expensive coffee costs more than US$700 per kilogram. Asian palm civet – a cat-like creature in Indonesia, eats fruits, including select coffee cherries. It excretes partially digested seeds that produce a smooth, less acidic brew of coffee called kopi luwak.