test tube

noun

Definition of test tube

  1. :  a plain or lipped tube usually of thin glass closed at one end and used especially in chemistry and biology

1846

First Known Use of test tube

1846


TEST TUBE Defined for English Language Learners

test tube

noun

Definition of test tube for English Language Learners

  • : a glass container that is shaped like a tube which is closed at one end and that is used especially in science experiments


TEST TUBE Defined for Kids

test tube

noun

Definition of test tube for Students

  1. :  a tube of thin glass closed at one end and used especially in chemistry and biology


Medical Dictionary

test tube

noun

Medical Definition of test tube

  1. :  a plain or lipped tube usually of thin glass closed at one end and used especially in chemistry and biology



Seen and Heard

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

WORD OF THE DAY

to reflect on carefully

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

  • manet-jeanne-spring
  • Which is a synonym of chaffer?
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