Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Medical
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

Medical Dictionary

poly(A)

play
noun \ˈpäl-ē-ˈā\

Medical Definition of poly(A)

  1. :  RNA or a segment of RNA that is composed of a polynucleotide chain consisting entirely of adenine-containing nucleotides and that codes for polylysine when functioning as messenger RNA in protein synthesis—called also polyadenylate, polyadenylic acid




Learn More about poly(a)


Seen and Heard

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

WORD OF THE DAY

to defraud especially of money

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

image567572573

Which of these is a synonym of unctuous?

angry maudlin prompt oily
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

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

TAKE THE QUIZ