STIPULE

stipule. Stipule, n. a leaf or scale at the base of a petiole or peduncle

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Stip″ule (?), n. [[L. stipula a stalk, stem, straw: cf. F. stipule. Cf. Stubble.]] (Bot.) An appendage at the base of petioles or leaves, usually somewhat resembling a small leaf in texture and appearance.