leaflet Meaning and Definition
1. n. a thin triangular flap of a heart valve
2. n. a small book usually having a paper cover
3. n. part of a compound leaf
A leaflet in botany is a leaf-like part of a compound leaf. Though it resembles an entire leaf, a leaflet is not borne on a main plant stem or branch, as a leaf is, but rather on a petiole or a branch of the leaf.
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