D defs.my
Entry 1 sense Webster, 1913

Verticillaster

· Ver·ti·cil·las·ter · IPA
01 a. A whorl of flowers apparently of one cluster, but composed of two opposite axillary cymes, as in mint. See Illust. of Whorl.
  1. 1.
    A whorl of flowers apparently of one cluster, but composed of two opposite axillary cymes, as in mint. See Illust. of Whorl.(Bot.) See: Whorl