'Regularia' definitions:

Definition of 'Regularia'

From: GCIDE
  • Regularia \Reg`u*la"ri*a\ (r[e^]g`[-u]*l[=a]"r[i^]*[.a]), n. pl. [NL.] (Zool.) A division of Echini which includes the circular, or regular, sea urchins. [1913 Webster]