Regularia
Pronunciation : Reg`u*la"ri*a (rg`*l"r*)
Part of Speech : n.pl.
Etymology : [NL.] (Zo?l.)
Definition : Defn: A division of Echini which includes the circular, or regular, sea urchins.
Source : Webster's Unabridged Dictionary, 1913
Merriam-Webster's Everyday Language Reference Set: Includes: The Merriam-Webster Dictionary, The Merriam-Webster Thesaurus, and The Merriam-Webster Vocabulary Builder