polychlorinated biphenyl

noun
poly·​chlo·​ri·​nat·​ed biphenyl | \ ˌpä-lē-ˈklȯr-ə-ˌnā-təd- How to pronounce polychlorinated biphenyl (audio) \

Definition of polychlorinated biphenyl

: any of several compounds that are produced by replacing hydrogen atoms in biphenyl with chlorine, have various industrial applications, and are toxic environmental pollutants which tend to accumulate in animal tissues

called also PCB

First Known Use of polychlorinated biphenyl

1959, in the meaning defined above

Keep scrolling for more

Learn More about polychlorinated biphenyl

Statistics for polychlorinated biphenyl

Look-up Popularity

Time Traveler for polychlorinated biphenyl

The first known use of polychlorinated biphenyl was in 1959

See more words from the same year

Keep scrolling for more

More Definitions for polychlorinated biphenyl

polychlorinated biphenyl

noun
poly·​chlo·​ri·​nat·​ed biphenyl | \ ˌpäl-i-ˈklōr-ə-ˌnāt-əd-, -ˈklȯr- How to pronounce polychlorinated biphenyl (audio) \

Medical Definition of polychlorinated biphenyl

: any of several compounds that are produced by replacing hydrogen atoms in biphenyl with chlorine, have various industrial applications, and are toxic environmental pollutants which tend to accumulate in animal tissues

called also PCB

More from Merriam-Webster on polychlorinated biphenyl

Britannica.com: Encyclopedia article about polychlorinated biphenyl

Comments on polychlorinated biphenyl

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

WORD OF THE DAY

to speak slightingly about or to degrade

Get Word of the Day daily email!

Test Your Vocabulary

Challenging Vocabulary Quiz Returns!

  • stylized drawing of woman pole vaulting across gap to get trophy
  • Which is a synonym of fuliginous?
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!