adjective Zoology, Botany.
Examples from the Web for bipectinate
Bipectinate: antennae having comb-like teeth or processes on Beach side of each joint.Explanation of Terms Used in Entomology|John. B. Smith
Bipectinate with the branches on each side alternately long and short.An Introduction to Entomology: Vol. IV (of 4)|William Kirby
Spire of shell much reduced; two bipectinate ctenidia, the right being the smaller; no operculum.