anneal

[uh-neel]
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verb (used with object)
  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. Biochemistry. to recombine (nucleic acid strands) at low temperature after separating by heat.
  5. to fuse colors onto (a vitreous or metallic surface) by heating.
noun
  1. an act, instance, or product of annealing.

Origin of anneal

before 1000; Middle English anelen, Old English anǣlan to kindle, equivalent to an- on + ǣlan to burn, akin to āl fire
Related formsan·neal·er, nounun·an·nealed, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for anneal

harden, thicken, toughen, temper

Examples from the Web for anneal

Historical Examples of anneal


British Dictionary definitions for anneal

anneal

verb
  1. to temper or toughen (something) by heat treatment
  2. 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. (often foll by out) physics to disappear or cause to disappear by a rearrangement of atomsdefects anneal out at different temperatures
noun
  1. an act of annealing
Derived Formsannealer, noun

Word Origin for anneal

Old English onǣlan, from on + ǣlan to burn, from āl fire
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for anneal
v.

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.

Online Etymology Dictionary, © 2010 Douglas Harper