foraminifers
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pluralof foraminifer.plural
The grammatical form denoting more than one person, place, thing, or idea.
foraminifernounany 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.
Example Sentences
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The study focuses on three major groups of calcifying plankton: coccolithophores, foraminifers, and pteropods.
From Science Daily ● Feb. 8, 2026
At one moment he has to deal with the bones of some large mammal scattered through a deposit of superficial gravel, at another time with the minute foraminifers and ostracods of an upraised sea-bottom.
From Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 6 "Geodesy" to "Geometry" by Various
Beneath the reef are thick beds of limestone, composed largely of the remains of foraminifers, which cover the lavas and fragraental materials of the old submarine volcano.
From The Elements of Geology by William Harmon Norton
Certain small foraminifers, for example, met with in some of the oldest formations, do not seem to differ from species which are still living.
From Geology by James Geikie
Among living foraminifers, Lagena, Globigerina, and Nodosaria are known in the later Cambrian or early Ordovician.
From Climatic Changes Their Nature and Causes by Ellsworth Huntington