test tube
18
2.8
- noun
- /ˈtɛst tuːb/
- Specialized
:
tubo de ensayo
- The scientist carefully poured the chemical into the test tube to avoid any spills.
- a test tube baby
- test tube contained
- labeled test tube
And it also makes sense if you ask, let's imagine you have a test tube with a million bacteria.
- And it also makes sense if you ask, let's imagine you have a test tube with a million bacteria.
- Is there any research other than on rats and in test tubes that suggests that we feel better on a low lectin diet?
- But current experiments are going on in laboratories looking at Test tube effects of the virus on different antibodies, etcetera.
- But, and if we if we put if we also put DNA into the machine and the building blocks of RNA, we can get the machine to make RNA in the test tube.
Examples
-
Samples can be processed in test tubes and kept cold during treatment by immersion in an ice bath.
Academic text (1996) -
So not every plasmid in your test tube is going to have the right gene inserted in the right way.
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- Take three drops from the test tube on the left.
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Did you clean all the bottles and test tubes in the laboratory?
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So let's split this into two test tubes here, but let's add some iron drops to this.
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McClintock places the test tube into a clear plexiglass container.
Fiction book (1995) -
A small piece of Neanderthal bone is drilled out and dissolved into a test-tube solution.
Academic text (2006) -
Here's yeast growing in a test tube, and this is now haploid yeast.
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She placed the test tube in the heating rack to mix the solution thoroughly.
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In chemistry class, we learned how to use a test tube for experiments with liquid substances.
Synonyms
680
2.0
A long hollow thing like a pipe that carries liquids or gases, sometimes inside the body
3
2.9
A thin round container made of glass used in a lab to hold liquids
How Big
- Specialized
1
9.4
- Specialized
1
5.1
- Specialized
13
3.7
- Specialized
18
2.8
- Specialized
Surface Forms
Morphology
The meaning 'a small glass tube used in laboratories' is directly deducible from combining 'test' (an activity to check or examine) with 'tube' (a hollow cylinder) — literally a tube used for tests/experiments. This noun–noun compounding is a regular, transparent pattern in English (and has clear parallels in other languages), so a B1 learner knowing both constituents should comprehend the MWE.
Etymology
Test tube comes from the simple image of a small glass tube used for a test in a lab. So today it means 'a small glass tube used in experiments'.