geminate: arranged in pairs composed of two similar parts: doubled.
Sometimes few simple hexaradiate and geminate tetraradiate spicula are mingled.
Spicula of three different kinds; simple needles, radiate and geminate mixed.
Spicula of three different kinds; simple needles, radiate, and geminate mixed.
Frustules single or geminate, cylindrical, short, in zone view rectangular or with undulating sides.
Mouth-spots two, or one, with a distinct construction; flagella symmetrically arranged; nucleus bilobed or geminate.
"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.