extrachromosomal

adjective ex·tra·chro·mo·som·al \ ˌek-strə-ˌkrō-mə-ˈsō-məl , -ˈzō- \

Definition of extrachromosomal

: situated or controlled by factors outside the chromosome
  • extrachromosomal inheritance

First Known Use of extrachromosomal

1906

in the meaning defined above

See Words from the same year
NEW! Time Traveler

Medical Dictionary

extrachromosomal

adjective ex·tra·chro·mo·som·al \ -ˌkrō-mə-ˈsō-məl, -ˈzō- \

medical Definition of extrachromosomal

: situated or controlled by factors outside the chromosome
  • extrachromosomal inheritance
  • extrachromosomal DNA

Seen and Heard

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

Love words? Need even more definitions?

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

WORD OF THE DAY

to beat or defeat soundly

Get Word of the Day daily email!

Test Your Vocabulary

Test Your Emoji Exceptionalism

  • test-your-emoji-exceptionalism-written-with-a-lot-of-emoji
  • What is this emoji intended to represent: 🤳
True or False

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ
SCRABBLE® Sprint

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!