adjective
rare BotanyOf or relating to the family Passifloraceae, comprising chiefly tropical and subtropical climbing plants typified by the passion flowers (genus Passiflora).
Origin
Late 19th century; earliest use found in Isaac Funk (1839–1912), publisher and reformer. From scientific Latin Passiflora, genus name + -aceous, after scientific Latin Passifloraceae, family name.
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