reanneal
/ˌriːəˈniːl/verb
1 [with object] To anneal (glass, metal, etc.) again.
2 [with object] To convert (nucleic acid) from a single-stranded to a double-stranded form, especially after denaturation.
3 [no object] Of 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.