foraminifer

from WordNet (r) 3.0 (2006)

foraminifer
    n 1: marine microorganism having a calcareous shell with
         openings where pseudopods protrude [syn: {foram},
         {foraminifer}]

from The Collaborative International Dictionary of English v.0.48

Foraminifer \For`a*min"i*fer\, n. (Zool.)
   One of the {Foraminifera}.
   [1913 Webster]

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