Longman Dictionary English From Longman Dictionary of Contemporary EnglishRelated topics: Glass, Industryannealan‧neal /əˈniːl/ verb [transitive] technical TIGTIto make metal or glass hard by heating it and then slowly letting it get cold→ See Verb tableOrigin anneal Old English onælan, from ælan “to set on fire, burn” ldoceonline.com
