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glass tube

glass tube

3 2.9
A thin round container made of glass used in a lab to hold liquids
  • noun
  • /ɡlæs tuːb/
  • Specialized
translation icon : tubo de vidrio
  • Sonne took samples; among them were 40 glass tubes filled with blood that needed to be centrifuged as quickly as possible.

And what I'm going to do is I'm going to start heating, I'm going to start heating this glass tube.

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Examples

  • During the experiment, the glass tube was inserted further so that the smoke from the cigarettes sticks to the CFP directly.

    Academic text (2018)
  • So we're going to do an experiment now, which involves a glass tube, a heavy glass tube filled with a mixture of hydrogen gas and chlorine gas.

  • And the way it works is it has this thin glass tube that has mercury in it.

  • So if I plug this into my long glass tube, watch what happens, I get a laser light coming out the end of it.

  • The cigarette is fitted into the glass tube on the right, and a plastic tube is used to connect to a single-port smoking machine.

    Academic text (2018)
  • Maguire squeezed the black rubber cap on the bottle and drew the liquid into a thin glass tube.

    Fiction book (1996)
  • Temperature resistance experiments involved incubating 100 L of phage suspension at various temperatures for 12 hours in sealed glass tubes.

    Academic text (2003)
  • We added 8 µL of the supernatant and 56 µL of sulphuric acid (98%) to glass tubes.

    Academic text (2018)
  • The teacher had several glass tubes with small bores, smaller than a drinking straw.

  • Here, fine sand forms a band amid coarser salt inside a glass tube.

Synonyms

tube
vsglass tube
680 2.0

A long hollow thing like a pipe that carries liquids or gases, sometimes inside the body

is the glass laboratory cylinder specifically for holding mixing or conducting substances
test tube
vsglass tube
  • Specialized
18 2.8

A small glass tube closed at one end used in labs to hold, heat, or mix liquids

is a general glass cylinder used in labs, not limited to small closed samples
beaker
vsglass tube
  • Specialized
13 3.7

A wide glass or plastic container with a flat bottom used in labs to mix and heat liquids

is a narrower glass cylinder often used for holding or conducting substances

Surface Forms

glass tube singular
glass tubes plural

Morphology

glass + tube

The meaning 'a tube made of glass' is directly and transparently derived from combining 'glass' (the material) with 'tube' (a hollow cylinder). This simple noun–noun compound follows common compositional patterns found across languages, so a B1 learner who knows both constituents can readily infer the meaning.

Etymology

Glass tube is a simple name made from glass and tube; picture a glassmaker blowing a long hollow stick like a small pipe that can hold liquids. That's why the term means 'a round glass container used in labs to hold or mix chemicals'.