zygopleuralhttp://www.oed.com/dictionary/zygopleural_adj%3Ftab%3Dmeaning_and_usezygopleural, adj.
First published 1921; not fully revised

zygopleuraladjective

Biology.
  1. 1883–
    Having bilateral symmetry.
    Stressed as zygoˈpleural.

Originally published as part of the entry for zygopleura, n.

zygopleura, n. was first published in 1921; not fully revised.