microplastic

noun
mi·​cro·​plas·​tic | \ ˌmī-krō-ˈpla-stik How to pronounce microplastic (audio) \
plural microplastics

Definition of microplastic

: a very small fragment or piece of plastic specifically : a piece of plastic that is five millimeters or smaller in size usually plural Indeed, a handful of sand or cup of seawater from nearly anywhere in the world will probably be peppered with microplastics—pieces that are tinier than a small pea and often invisible. — Jennifer Ackerman … the Mariana Trench contains the highest levels of microplastics (most likely from clothing, bottles, packaging and fishing gear) yet found in the open ocean, offering irrefutable proof that plastics have penetrated even the most remote places on the planet. — Rina Li

Other Words from microplastic

microplastic adjective
microplastic pollution microplastic debris

First Known Use of microplastic

1990, in the meaning defined above

Keep scrolling for more

Learn More about microplastic

Statistics for microplastic

Look-up Popularity

Time Traveler for microplastic

The first known use of microplastic was in 1990

See more words from the same year

Comments on microplastic

What made you want to look up microplastic? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

to shake or wave menacingly

Get Word of the Day daily email!

Test Your Vocabulary

Summer 2019 Words of the Day Quiz

  • a-bowl-of-peach-sorbet-with-cut-peaches-next-to-it
  • Which is a synonym of desideratum?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
Word Winder's CrossWinder

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!