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adjective
1Botany Entomology
Resembling a cushion in shape, moderately convex.2Botany
Of a leaf or leaflet: having a pulvinus; = pulvinated .
Origin
Early 19th century; earliest use found in Robert Kaye Greville (1794–1866), botanist. From classical Latin pulvīnātus cushion-shaped, in scientific Latin also moderately convex from pulvīnus cushion + -ātus.
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