perfoliate

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Related to perfoliation: proliferate, perforate, peltate leaf, sessile

perfoliate

[pər′fōl·ē‚āt]
(botany)
Pertaining to the form of a leaf having its base united around the stem.
(invertebrate zoology)
Pertaining to the form of certain insect antennae having the terminal joints expanded and flattened to form plates which encircle the stalk.