test tube
noun
a hollow cylinder of thin glass with one end closed, used in chemical and biological experimentation and analysis.
test tubes
-
pluralof test tube.plural
The grammatical form denoting more than one person, place, thing, or idea.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
And, as artificial intelligence moves drug discovery from test tubes to silicon, Lilly is in prime position to profit.
From Barron's ● Jun. 19, 2026
These preforms, which look like plastic test tubes, are sold to brands and bottle manufacturers to be shaped into plastic bottles of the desired shape and size.
From BBC ● Apr. 2, 2026
"Modern biology isn't just microscopes and test tubes," Tolić says.
From Science Daily ● Dec. 10, 2025
In Ball Sort Puzzle, you are shown a screen featuring several test tubes that contain marbles of various colors.
From Slate ● Dec. 28, 2024
Yassen had brought the test tubes that were even now being inserted into the computers.
From "Stormbreaker" by Anthony Horowitz
