Pinnatiped

Pin*nat"i*ped (?), a. [L. pinnatus feathered + pes, pedis foot: cf. F. pinnatipède.] (Zoöl.) Having the toes bordered by membranes; fin-footed, as certain birds.

Pin*nat"i*ped, n. (Zoöl.) Any bird which has the toes bordered by membranes.