
1) Laboratory equipment
Found on
https://www.crosswordclues.com/clue/coulter-counter

A Coulter counter is an apparatus for counting and sizing particles suspended in electrolytes. It is used for cells, bacteria, prokaryotic cells and virus particles. A typical Coulter counter has one or more microchannels that separate two chambers containing electrolyte solutions. As fluid containing particles or cells is drawn through each micro...
Found on
http://en.wikipedia.org/wiki/Coulter_counter

<apparatus> Particle counter used for bacteria or eukaryotic cells, works by detecting change in electrical conductance of a small aperture as fluid containing cells is drawn through (the cell, a nonconducting particle, alters the effective cross-section of the conductive channel). ... (18 Nov 1997) ...
Found on
http://www.encyclo.co.uk/local/20973

Particle counter used for bacteria or eukaryotic cells; works by detecting change in electrical conductance as fluid containing cells is drawn through a small aperture. (The cell, a non-conducting particle, alters the effective cross-section of the conductive channel).
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http://www.encyclo.co.uk/visitor-contributions.php
No exact match found.