microplastic
Americannoun
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a tiny particle of plastic, especially one five millimeters or smaller, formed from the breakdown of plastic waste, shed from synthetic textiles, or intentionally added to various products.
Microplastics are a problem because marine life mistakes the floating particles for food.
-
these tiny particles of plastic taken collectively.
Microplastic is still used in some cosmetics and personal care products.
Etymology
Origin of microplastic
First recorded in 1955–60; micro- ( def. ) + plastic ( def. )
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.
Research is being carried out to find out how a microplastic spillage has affected coastal sea bird populations.
From BBC ● Oct. 7, 2026
And there is at least one product on the market, PlasticTox by Arrow Lab Solutions, that makes at-home blood and saliva tests that estimate the number and size of microplastic particles you carry.
From The Wall Street Journal ● Jul. 17, 2026
About 11 months later, Lynch's team returned to collect road dust from each section so they could measure any microplastic released into the surrounding environment.
From Science Daily ● Jun. 28, 2026
Researchers are urging government to put in new regulations to insist processed food manufacturers test for microplastic contamination - similar to the legislation that already exists to prevent chemical contamination.
From BBC ● Jun. 19, 2026
Compared with water use, microplastic emissions contributed a much smaller share of overall ecosystem damage.
From Science Daily ● Jun. 1, 2026
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