geminate: arranged in pairs composed of two similar parts: doubled.
Mouth-spots two, or one, with a distinct construction; flagella symmetrically arranged; nucleus bilobed or geminate.
Spicula of three different kinds; simple needles, radiate and geminate mixed.
Sometimes few simple hexaradiate and geminate tetraradiate spicula are mingled.
Frustules single or geminate, cylindrical, short, in zone view rectangular or with undulating sides.
Spicula of three different kinds; simple needles, radiate, and geminate mixed.
"duplicated, found in pairs," 1590s, from Latin geminatus "twinned, equal," past participle of geminare "to double, repeat," related to geminus "twin," perhaps from PIE *yem- "to pair." As a verb, from 1630s. Related: Geminated; geminating.
geminate gem·i·nate (jěm'ə-nĭt, -nāt')
Occurring in pairs.