polytenize
/ˌpɒlɪˈtiːnʌɪz/(also polytenise) Cell Biol.
verb
1 [no object] To undergo polytenization.
2 [with object] To subject to polytenization; to make polytene.
Origin
1970s; earliest use found in Proceedings of the National Academy of Sciences of the United States of America. From polytene + -ize, after polytenization.