(ˈ)ā|ped. ə ləs adjective
Etymology: a- (II) + -petalous
1. : of, relating to, or characteristic of the Apetalae ; often of flowers : having no petals
2. : not petaloid ; specifically : lacking the petallike expansion of the ambulacra
apetalous sea urchins
• apet·aly (ˈ) ̷ ̷ˈ ̷ ̷ ə lē noun -es