belonging or pertaining to the Pieridae, a family of butterflies comprising the whites, sulfurs, etc.
–noun
2.
Also called pi⋅er⋅i⋅dine /paɪˈɛrɪˌdaɪn,-dɪn/Show Spelled Pronunciation[pahy-er-i-dahyn,-din]Show IPA.any member of the butterfly family Pieridae.
Origin: 1880–85; < NL Pieridae, appar. by haplology from *Pierididae, equiv. to Pierid-, s. of Pieris a genus (< Gk Pīerís, sing. of Pīerídes a name for the Muses; see Pierides) + -idae-id2