verb (used with object)
- to heat (glass, earthenware, metals, etc.) to remove or prevent internal stress.
- to free from internal stress by heating and gradually cooling.
- to toughen or temper.
- Biochemistry. to recombine (nucleic acid strands) at low temperature after separating by heat.
- to fuse colors onto (a vitreous or metallic surface) by heating.
- an act, instance, or product of annealing.
- to temper or toughen (something) by heat treatment
- to subject to or undergo some physical treatment, esp heating, that removes internal stress, crystal defects, and dislocations
- (tr) to toughen or strengthen (the will, determination, etc)
- (often foll by out) physics to disappear or cause to disappear by a rearrangement of atomsdefects anneal out at different temperatures
- an act of annealing
Old English onælan “to set on fire, kindle,” from on- “on” + ælan “to burn, bake,” from Proto-Germanic *ailan, “probably” [Watkins] from PIE *ai- “to burn” (see ash (n.1)); related to Old English æled “fire, firebrand,” Old Norse eldr, Danish ild “fire.” Related: Annealed; annealing.