Petalosticha

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Petalosticha \Pet`a*los"ti*cha\, PROP. n. pl. [NL., from Gr.
     pe`talon a leaf + sti`chos a row.] (Zool.)
     An order of Echini, including the irregular sea urchins, as
     the spatangoids. See {Spatangoid}.
     [1913 Webster]