Colony counter

Col"o*ny count`er

(kl"*n kount"r), n. (Microbiology) an instrument designed to conveniently count or assist counting colonies{9} of microorganisms on a plate containing a gelled growth medium. One variety uses a pencil-like rod with a metal tip, which is connected by an electrical connection to the gelled growth medium; when touched to a colony{9} on the plate, the completion of the electrical circuit causes an increment of 1 unit on the readout of the colony counter.
[PJC]

 

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Wed 12th December 2018