GNU Collaborative International Dictionary of English

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1.       
   ‖Foraminifera , n. pl. [NL., fr. L. foramen, -aminis, a foramen + ferre to bear.] (Zool.) An extensive order of rhizopods which generally have a chambered calcareous shell formed by several united zooids. Many of them have perforated walls, whence the name. Some species are covered with sand. See Rhizophoda.
   1913 Webster