feather edge

feath·er edge

(fedh'ĕr ej)
The thinnest area of a blood smear, where the differential count is performed.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
References in periodicals archive ?
He pulled Chris Wright through square leg for a third boundary but in the over before tea, pushed at Wright to get a feather edge behind to fall for 30.
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The first, a feather edge from Hashim Amla on one, didn't cost too much, but a Ben Stokes' lbw shout against Elgar on 58 was a bad error from Cook who thought the two noises he heard included the bat.
Kokubo Y et al###90###All Ceramics###Chamfer###MG: Feather edge greater than Shoul- N/A
The paceman returned in his next over to dismiss the dangerous Brendon McCullum (23), who got a feather edge to wicketkeeper Mahendra Singh Dhoni behind the stumps.
"This new surfacer is not only fast and easy to spray, it also provides good absorption of overspray and exceptional feather edge capabilities, enabling technicians to achieve optimal final results."
'Red Cedar' colours just don't do it for me, so I chose a grey-green for the feather edge boards near the house, and a dark 'forest green' for the rear fence.
* Macroscopically, the smear should exhibit a gradual transition from thick to thin, ending with an acceptable feather edge free of streaks, waves, or holes.
Feather edge burrs, often only visible through a microscope, are removed.
The eaves come to a feather edge with a concealed gutter as the soffit line breaks rather crudely across the screen lines.
Breeze block construction, London brick entrance, pillars, feather edge wood clad to remaining garden shed