ad·nate \ˈadˌnāt\adjective Etymology: Latin adnatus, past participle of adnasci, alteration of agnasci to be born in addition to — more at agnate 1.biology: grown together — used especially of unlike parts < a coral zooid adnate to the stem > < a calyx adnate to the ovary > — compare connate 2.biology: growing with one side adherent to a stem < an adnate anther >