Source : Webster's Revised Unabridged Dictionary (1913)

Zoochlorella \Zo`["o]*chlo*rel"la\, n. [NL., dim. from Gr.
   zw^,on an animal + ? green.] (Zo["o]l.)
   One of the small green granulelike bodies found in the
   interior of certain stentors, hydras, and other
   invertebrates.