Am[oe]b[ae]

from The Collaborative International Dictionary of English v.0.48

Amoeba \A*moe"ba\, Amoeba \A*m[oe]"ba\, n.; pl. L.
   {Am[oe]b[ae]}; E. {Am[oe]bas}. [NL., fr. Gr. ? change.]
   (Zool.)
   A rhizopod common in fresh water, capable of undergoing many
   changes of form at will. Same as {ameba}. See {Rhizopoda}.
   [1913 Webster]