foraminifera

plural noun

fo·​ra·​mi·​nif·​era fə-ˌra-mə-ˈni-f(ə-)rə How to pronounce foraminifera (audio)
ˌfȯr-ə-mə-ˈni-
ˌfär-
: organisms that are foraminifers

Examples of foraminifera in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The work covered macrofauna, meiofauna, foraminifera, and environmental DNA, or eDNA. Aamir Khollam, Interesting Engineering, 24 June 2026 Shout out, specifically, to homotrema rubrum, the variety of foraminifera that produces a bright pigment that turns its shell red. Adam Sachs, Condé Nast Traveler, 20 Nov. 2025 Invertebrate paleontologists identified widespread ocean acidification based on the mass deaths of tiny creatures called foraminifera. Joanna Thompson, Space.com, 18 Nov. 2025 Many foraminifera found refuge in or near the Southern Ocean around Antarctica. Tim Vernimmen, JSTOR Daily, 19 June 2025 This three-mile stretch of soft, pink sand — which gets its color from seashells and microscopic organisms called foraminifera — is a place to go for total relaxation. Skye Sherman, Travel + Leisure, 13 June 2023

Word History

Etymology

New Latin, from Latin foramin-, foramen + -fera, neuter plural of -fer -fer

First Known Use

circa 1836, in the meaning defined above

Time Traveler
The first known use of foraminifera was circa 1836

Browse Nearby Words

Cite this Entry

“Foraminifera.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/foraminifera. Accessed 1 Jul. 2026.

Kids Definition

foraminifera

plural noun
fo·​ra·​mi·​nif·​era fə-ˌram-ə-ˈnif-(ə-)rə How to pronounce foraminifera (audio)
ˌfȯr-ə-mə-ˈnif-
ˌfär-
: protozoans that are foraminifers
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