- plural of phenomenon.
phenomena
Americannoun
noun
Usage
As with other plurals of Latin or Greek origin, like media and criteria, there is a tendency to use the plural phenomena as a singular ( This phenomena will not be seen again ), but such use occurs infrequently in edited writing. The plural form phenomenas, though occasionally seen, has even less currency.
Etymology
Origin of phenomena
First recorded in 1580–90 with spelling phænomena
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Their effects have been observed through well established phenomena such as the Lamb shift, spontaneous emission, and the Casimir effect.
From Science Daily ● Oct. 3, 2026
Dillon Amaya, an oceanographer at North Carolina State University, said the elevated sea levels could collide with other natural phenomena to create problems for coastal communities.
From Barron's ● Oct. 2, 2026
They combined images and seemingly AI-generated speech about urban legends, occult phenomena and conspiracy theories.
From Barron's ● Sep. 27, 2026
"By simulating quark confinement and string-breaking phenomena in a controlled lab environment, we're opening up new pathways for experimental investigations into the behavior of matter at its most fundamental level."
From Science Daily ● Sep. 26, 2026
Herschel had little doubt that chemical, and, ultimately, biological phenomena, would also be attributed to such cause-and-effect mechanisms.
From "The Gene" by Siddhartha Mukherjee
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Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
