TEST TUBE

Pronunciation (US):

(GB):

IPA (US):

 Dictionary entry overview: What does test tube mean? 

• TEST TUBE (noun)
  The noun TEST TUBE has 1 sense:

1. glass tube closed at one end

  Familiarity information: TEST TUBE used as a noun is very rare.

 Dictionary entry details 

• TEST TUBE (noun)

Sense 1

Meaning:

Glass tube closed at one end

Classified under:

Nouns denoting man-made objects

Hypernyms ("test tube" is a kind of...):

tube; tubing (conduit consisting of a long hollow object (usually cylindrical) used to hold and conduct objects or liquids or gases)

 Context examples 

The distance red blood cells travel in one hour in a sample of blood as they settle to the bottom of a test tube.

(Erythrocyte sedimentation rate, NCI Dictionary)

The 'test tube' chemical reactions of lipids-not involving enzymes

(Lipid Chemistry, NCI Thesaurus)

Latin for "in glass"; in a laboratory dish or test tube; an artificial environment.

(In vitro, The Titi Tudorancea Bulletin)

A laboratory test or analysis of the biological activity of a substance performed by studying its effect on an organism or in a test tube under controlled conditions.

(Bioassay, NCI Thesaurus)

Assay conducted in an artificial environment, such as in a test tube, under a defined and controlled set of solvent and solute conditions.

(In Vitro Assay, NCI Thesaurus)

The growing of microbes in test tube or petri dish type environments

(Culturing, In Vitro Microbial, NCI Thesaurus)

A test tube, capillary tube, or other tube designed for the collection of blood.

(Blood Collection Tube, NCI Thesaurus)

Carbon nanotubes can be filled and capped, forming nanoscale test tubes or potential drug delivery devices.

(Carbon Nanotubes, The Titi Tudorancea Bulletin)

Albert Einstein College of Medicine microbiologist William Jacobs and colleagues previously discovered by accident that antioxidants like vitamin C stopped TB bacteria in a test tube from becoming persisters.

(Vitamin C Might Shorten Tuberculosis Treatment Time, Study Indicates, VOA/Steve Baragona)

The problem is that these circulating tumor cells are so few that if you just take a regular blood sample, those test tubes likely won't even have a single circulating tumor cell in them.

(Magnetic Wires May Soon Be Used in Your Veins to Detect Cancer Earlier, The Titi Tudorancea Bulletin)