a. Bot. and Zool. [f. L. flābell-um (see FLABEL) + -ATE2.] Like a fan in form, fan-shaped.
1819. G. Samouelle, Entomol. Compend., 197. Rhipiphorus antennæ pectinated or flabellate.
1853. G. Johnston, Nat. Hist. E. Bord., I. 214. The branchlets of the Ash and Plane are opposite, patent, and knobby; those of the Elms alternate, zigzag, and flabellate; of the Oak irregular, kneed, and spreading; and of the Willow irregular and erect, but so lithe as almost to droop.
1856. W. Clark, Van der Hoevens Zool., I. 235. Branchiæ two flabellate, infundibuliform or pectinate, spiral, large, with bearded laciniæ and a soft cylindrical filament at the base in the first segment of the body, which is without rudiments of feet.