Test Tube

Pronunciation: /tɛst tub/

Definitions of test tube

noun a thin glass tube used in scientific experiments to hold and mix small quantities of liquids

Example Sentences

A1 The scientist used a test tube to mix the chemicals.

A2 The student carefully held the test tube over the Bunsen burner.

B1 The lab technician labeled each test tube with a unique code.

B2 The researcher conducted experiments with various substances in the test tube.

C1 The pharmaceutical company required strict protocols for handling test tubes in the lab.

C2 The test tube shattered when exposed to extreme heat, causing a dangerous situation in the laboratory.

Examples of test tube in a Sentence

formal The scientist carefully placed the specimen in the test tube for analysis.

informal Hey, can you pass me that test tube over there?

slang I accidentally broke the test tube in the lab, oops!

figurative Her emotions were like a bubbling mixture in a test tube, ready to explode at any moment.

Grammatical Forms of test tube

• past tense: used test tube
• plural: test tubes
• comparative: more test tube
• superlative: most test tube
• present tense: use test tube
• future tense: will use test tube
• perfect tense: have used test tube
• continuous tense: is using test tube
• singular: test tube
• positive degree: test tube
• infinitive: to use test tube
• gerund: using test tube
• participle: used test tube

Origin and Evolution of test tube

First Known Use: 1830 year

Language of Origin: English

Story behind the word: The word 'test tube' originated from the combination of 'test' as in a vessel for conducting experiments or tests, and 'tube' as a cylindrical container.

Evolution of the word: Originally used to refer to a tube-shaped vessel for conducting scientific experiments, the term 'test tube' has evolved to also symbolize scientific research and experimentation in general.