test-tube

adjective \ ˈtes(t)-ˌt(y)üb \
|Updated on: 9 Jun 2018

Definition of test-tube

1 : in vitro
  • test-tube experiments
2 : produced by in vitro fertilization
  • test-tube babies

First Known Use of test-tube

1866

in the meaning defined at sense 1

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test tube

noun

Definition of test tube

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

Recent Examples of test tube from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'test tube.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of test tube

1846

in the meaning defined above

See Words from the same year
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TEST-TUBE Defined for English Language Learners

test tube

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

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

Medical Dictionary

test-tube

adjective

medical Definition of test-tube

1 : in vitro
  • test-tube experiments
2 : produced by in vitro fertilization
  • test-tube babies

test tube

noun

medical Definition of test tube

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

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