test tube

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test tube

1. a cylindrical round-bottomed glass tube open at one end: used in scientific experiments
2. made synthetically in, or as if in, a test tube
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Test Tube

 

a tube, usually made of glass, that is sealed at one end; a type of chemical laboratory vessel. Test tubes are used when working with small quantities of a substance.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
Bring culture tubes or bottles, stoppers, funnels, and pipettes and all plastic ware into the chamber at least one day before making medium to allow [O.sub.2] to desorb or diffuse out.
Culture tubes containing 5 mL of BHI broth and a cellulose disk were inoculated with ~[10.sup.6] CFU of P.
(2) Collect the filtrate in a sterile culture tube to obtain spore suspension.
The culture tubes were incubated at room temperature and MIC was recorded after 24 48 and 72 h (Javaid and Munir 2012).
For in vitro hardening the culture tubes were kept in a room at ambient temperature (30 [+ or -] 2[degrees]C) and normal day light for 7 days.
Immediately after autoclaving, the media were transferred to a sterile bench and poured into borosilicate glass (18 x 150 mm) culture tubes (Carolina Biological Supply Co., Burlington, North Carolina), which were then fitted with plastic caps.
These different types of explants were transferred separately and individually in culture tubes containing 20 ml of MS solidified medium [21] mixed with or without growth regulators.
Quantitative activities of bacteriocin extracts from culture samples of the three LAB under investigation were estimated by using a photometric assay on culture tubes [14] (Cabo et al.
The company published an outstanding collection of colored photographs from bacterial culture tubes to fetal mice, covering most microbiology sub-categories in Schneierson's Atlas of Diagnostic Microbiology (9th edition by 1984).

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