biforous

English

Etymology

From Latin biforis (“having two doors”), from bis (“twice, two”) + foris (“door”).

Adjective

biforous (not comparable)

1. Biforate.

   biforous spiracles

   • 2013, R. A. Crowson, The Biology of the Coleoptera, page 234:

     The true biforous spiracle has its opening completely divided by a transverse bar, leaving two usually rather slit-like openings.