Caducous

[kә'dju:kәs]

(adj.) shed at an early stage of development; 'most amphibians have caducous gills'; 'the caducous calyx of a poppy' .

Editor: Val--From WordNet

(-) Dropping off or disappearing early, as the calyx of a poppy, or the gills of a tadpole.

Edited by Bryan

adj. falling early as leaves or flowers.—n. Cadū′city transitoriness senility.

Editor: Simon