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Definition of Pappus
1. Noun. Calyx composed of scales or bristles or featherlike hairs in plants of the Compositae such as thistles and dandelions.
Definition of Pappus
1. n. The hairy or feathery appendage of the achenes of thistles, dandelions, and most other plants of the order Compositæ; also, the scales, awns, or bristles which represent the calyx in other plants of the same order.
Definition of Pappus
1. a tuft of bristles on the achene of certain plants [n -PI] : PAPPOSE, PAPPOUS [adj]
Medical Definition of Pappus
1. A tuft (or ring) of hairs or scales borne above the ovary and outside the corolla (possibly representing the calyx), a tuft of hairs on a fruit. (09 Oct 1997)