Meaning of infusorial

in•fu•so•ri•al

Pronunciation: (in"fyoo-sôr'ē-ul, -sōr'-), [key]
— adj.
  1. pertaining to, containing, or consisting of infusorians: infusorial earth.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.