hemocytometer


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hemocytometer

 [he″mo-si-tom´ĕ-ter]
a device used in manual blood cell counts consisting of a counting chamber of uniform depth that is covered by a ruled cover glass so that the region under each ruled square contains a known volume of the diluted blood specimen.

he·mo·cy·tom·e·ter

(hē'mō-sī-tom'ĕ-tĕr),
An apparatus for estimating the number of blood cells in a quantitatively measured volume of blood; it consists of a glass pipette with an ampulla for collecting and diluting the blood, and a counting chamber marked in squares.
[hemo- + G. kytos, cell, + metron, measure]

hemocytometer

/he·mo·cy·tom·e·ter/ (-si-tom´ĕ-ter) hemacytometer.

he·mo·cy·tom·e·ter

(hē'mō-sī-tom'ĕ-tĕr)
An apparatus for estimating the number of blood cells in a quantitatively measured volume of blood; consists of a glass pipette with an ampulla for collecting and diluting the blood, and a counting chamber marked in squares.
Synonym(s): hemacytometer, haemocytometer.
[hemo- + G. kytos, cell, + metron, measure]

Hemocytometer

An instrument used to count platelets or other blood cells.
Mentioned in: Platelet Count

hemocytometer

an instrument used in counting blood cells, commonly applied to a combination of counting chambers with coverglasses and pipettes for erythrocytes and leukocytes, all meeting established specifications.
References in periodicals archive ?
Caption: Supplemental Protocol S1, Figure 1: Schematic diagram of a hemocytometer (cell counting chamber)
These 48 h cultures were counted using a hemocytometer (Hausser Scientific, Horsham, PA).
Cell growth was determined by cell counting with a hemocytometer, and the optical density was measured at 560 nm (Spectronic Genesys 5 UV-visible spectrophotometer) every two days.
At 48 hours after plating, the cells were detached from the plates in a trypsin-EDTA solution and counted on a hemocytometer.
The effect of Hypericum species on the viability of infective forms of L (L) amazonensis was determined using a hemocytometer.
Coulter's method signaled the end of the manual testing era, in which technologists counted cells by microscope and hemocytometer.
The number of live (trypan blue excluding) and dead cells were determined using hemocytometer.
The concentrations of bacteria in control and serum preparations were determined by hemocytometer counts.