anneal

Short definition from Wiktionary

Verb

1. 1
   To subject to great heat and then (often slow) cooling, and sometimes reheating and further cooling, for the purpose of rendering less brittle; to temper; to toughen.
2. 2
   To cool glass slowly, to minimize internal stress.
3. 3
   To burn colors onto a glass or other surface.
4. 4
   To make a double-stranded nucleic acid by pairing a single strand with a complementary strand.
5. 5
   To strengthen or harden.
6. 6
   Alternative form of anele (“anoint”).

Noun

1. 1
   An act of annealing.