per i steroid (per i steroid)

[ to the Peristeroideæ. Peristeroideæ (pe-ris-te-roidē-ē), n. pl. [NL.: see per i steroid.] In Sun devall's system of cla ification, the Columbæ (including Didus and Didunculus ), or pigeons in the widest sense, considered as a cohort of anisodactyl Volucres. peristeromorph (pe-ris'te-rō-môrf), n. [NL. Peristeromorpha,