verb
1To anneal (glass, metal, etc.) again.
2Biochemistry
To convert (nucleic acid) from a single-stranded to a double-stranded form, especially after denaturation.3Of a nucleic acid sequence: to combine with a complementary sequence to form a double-stranded structure, especially following denaturation.
Origin
Mid 19th century. From re- + anneal, after reannealing.
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