transitive verbtrans·ac·ti·vat·ed, trans·ac·ti·vat·ing, trans·ac·ti·vates
To stimulate the transcription of (a gene in a host cell) by binding to DNA. Genes can be transactivated naturally by a virus or cellular protein or artificially by the insertion of a transactivator gene and segment of DNA into a cell.
(third-person singular simple present transactivates, present participle transactivating, simple past and past participle transactivated)
trans- +"Ž activate