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

in vitro

play
adverb or adjective in vi·tro \in-ˈvē-(ˌ)trō, -ˈvi-, -ˈwē-\

Simple Definition of in vitro

  • : outside the body

Full Definition of in vitro

  1. :  outside the living body and in an artificial environment

Origin of in vitro

New Latin, literally, in glass


First Known Use: circa 1894


Medical Dictionary

in vitro

play play
adverb or adjective in vi·tro \in-ˈvē-(ˌ)trō, -ˈvi-\

Medical Definition of in vitro

  1. :  outside the living body and in an artificial environment <growth of cells in vitro> <in vitro studies>




Learn More about in vitro


Seen and Heard

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

WORD OF THE DAY

February 6, 2016

an official order, decree, or edict

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

image1037863653

Which of the following refers to thin, bending ice, or to the act of running over such ice?

kittly-benders pince-nez spindrift duvet
Name That Thing

10 quick questions: hear them, spell them, and see how your skills compare to the crowd.

TAKE THE QUIZ
SCRABBLE® Sprint

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

TAKE THE QUIZ