• (a.) Semipalmate and loboped, as a grebe`s foot. See Illust. under Aves.
Fis`si·pal'mate adjective [ Latin fissus (past participle of findere to split) + palma palm.] (Zoology) Semipalmate and loboped, as a grebe's foot. See Illust. under Aves . 
(of birds) having the toes lobed or partially webbed.