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foram

 - 4 dictionary results

for⋅am

[fawr-uhm]
–noun
foraminifer.

Origin:
by shortening

for⋅a⋅min⋅i⋅fer

[fawr-uh-min-uh-fer, for-]
–noun, plural for⋅a⋅min⋅i⋅fers, fo⋅ram⋅i⋅nif⋅er⋅a [fuh-ram-uh-nif-er-uh] .
any chiefly marine protozoan of the sarcodinian order Foraminifera, typically having a linear, spiral, or concentric shell perforated by small holes or pores through which pseudopodia extend.
Also called fo⋅ram⋅i⋅nif⋅er⋅an [fuh-ram-uh-nif-er-uhn] , foram.


Origin:
1835–45; < NL Foraminifera, equiv. to L forāmin-, s. of forāmen foramen + -ifera; see -i-, -fer


fo⋅ram⋅i⋅nif⋅er⋅al, fo⋅ram⋅i⋅nif⋅er⋅ous, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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for·am   (fôr'əm, fŏr'-)   
n.  A foraminifer.

[Short for foraminifer.]
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Encyclopedia

foram

any unicellular organism of the rhizopodan order Foraminiferida (formerly Foraminifera), characterized by long, fine pseudopodia that extend from a uninucleated or multinucleated cytoplasmic body encased within a test, or shell. Depending on the species, the test ranges in size from minute to more than 5 cm (2 inches) in diameter and varies in shape, number of chambers, chemical composition, and surface orientation. Tests of a South Pacific species are large enough to be used as jewelry by oceanic islanders; Nummulite specimens from the Eocene limestones of the Egyptian pyramids often exceed 5 cm in diameter. Foraminiferans inhabit virtually all marine waters and are found at almost all depths, wherever there is protection and suitable food (microscopic organisms)

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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