foraminifer (plural foraminifers)
- Any of several large aquatic amoeboid protists, of the subphylum Foraminifera, characterized by streaming granular ectoplasm that among other things is used for catching food, often with a calcareous shell with many holes through which pseudopodia protrude.
- (amoebid protist): foram
any protist of the taxon Foraminifera
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