anneal(redirected from anneal glass)
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v. an·nealed, an·neal·ing, an·neals
1. To subject (glass or metal) to a process of heating and slow cooling in order to toughen and reduce brittleness.
2. To strengthen or harden.
To become strengthened or hardened: "the time she needed for opinion to anneal around her policy" (Alexander M. Haig, Jr.).
[Middle English anelen, from Old English onǣlan, to set fire to : on, on; see on + ǣlan, to kindle.]
1. (Metallurgy) to temper or toughen (something) by heat treatment
2. (General Physics) to subject to or undergo some physical treatment, esp heating, that removes internal stress, crystal defects, and dislocations
3. (tr) to toughen or strengthen (the will, determination, etc)
4. (General Physics) (often foll by out) physics to disappear or cause to disappear by a rearrangement of atoms: defects anneal out at different temperatures.
an act of annealing
[Old English onǣlan, from on + ǣlan to burn, from āl fire]
1. to heat (glass, earthenware, metals, etc.) to remove or prevent internal stress.
2. to free from internal stress by heating and gradually cooling.
3. to toughen or temper.
4. to recombine (nucleic acid strands) at low temperature after separating by heat.
5. to fuse colors onto (a vitreous or metallic surface) by heating.
[before 1000; Middle English anelen, Old English anǣlan to kindle =an- on + ǣlan to burn, akin to āl fire]
Past participle: annealed