Definition of petaliform in English:
petaliform
Pronunciation /ˈpɛt(ə)lɪfɔːm/
adjective
Botany
Having the form of or resembling a petal; petaloid.
Origin
Late 18th century; earliest use found in Thomas Martyn (1735–1825), botanist. From petal + -iform, after scientific Latin petaliformis.