test tube
Definition
A test tube is a thin glass tube with a round bottom. It is used in science experiments to hold liquids and solids.
Test tubes are often used in chemistry experiments. They can be used to mix chemicals, to heat chemicals, and to store chemicals.
Test tubes are also used in biology experiments. They can be used to grow bacteria, to culture cells, and to store biological samples.
Test tubes are a common piece of equipment in science labs. They are a versatile tool that can be used for a variety of experiments.
How can the word be used?
The scientist mixed the chemicals in the test tube.
Different forms of the word
Noun:
a small, narrow glass tube with a rounded bottom, used in laboratories for chemical experiments.
Adjective:
relating to or used in test tubes.
Etymology
The word "test tube" comes from the combination of the words "test" and "tube".
The word "test" comes from the Old French word "teste", which means "a small, narrow-necked bottle".
The word "tube" comes from the Latin word "tubus", which also means "a small, narrow-necked bottle".
The first recorded use of the word "test tube" in English was in 1809.
The word "test tube" is a compound word, made up of the words "test" and "tube". The word "test" means "to examine or try something", and the word "tube" means "a long, narrow container".
The literal meaning of the word "test tube" is "a small, narrow-necked bottle used to examine or try something".
The word "test tube" can be used to refer to the physical object, as well as to the act of using the object to conduct experiments.
The word "test tube" is a common word that is used in everyday speech. It is a useful word for describing laboratory equipment and for talking about the act of conducting experiments.
Question
Why are test tube important?