smear


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smear

a preparation of blood, secretions, etc., smeared onto a glass slide for examination under a microscope
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

smear

[smir]
(biology)
A preparation for microscopic examination made by spreading a drop of fluid, such as blood, across a slide and using the edge of another slide to leave a uniform film.
(electronics)
A television-picture defect in which objects appear to be extended horizontally beyond their normal boundaries in a blurred or smeared manner; one cause is excessive attenuation of high video frequencies in the television receiver.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in classic literature ?
He laid one lean inquiring finger on the small smear, just under the lock, which Superintendent Seegrave had already noticed, when he reproved the women-servants for all crowding together into the room.
Before we go a step further in this business we must see the petticoat that made the smear, and we must know for certain when that paint was wet."
There is a smear on the painting of your door, here.
"Do you happen to know anything about the smear? Might you have done it by accident yourself?"
The next thing to discover is when the paint was last seen without that smear. YOU have got a head on your shoulders--and you understand what I mean."
Had seen it, some hours afterwards, without a smear. Had left it, as late as twelve at night, without a smear.
"Do you remember when the smeared bit was done, sir?" asked the Sergeant.
Superintendent, when you supposed that the women-servants' petticoats smeared it."
With a yellow-ochre paint cake he smeared the legs and the breast, great streaks against the background of flour, ash, and turmeric.
In place of the tremulous, shrinking trader there lolled against the corner an all but naked, ash- smeared, ochre-barred, dusty-haired Saddhu, his swollen eyes - opium takes quick effect on an empty stomach - luminous with insolence and bestial lust, his legs crossed under him, Kim's brown rosary round his neck, and a scant yard of worn, flowered chintz on his shoulders.
We had traversed the entire way without mishap or adventure, and though the few we had met had eyed the great calot wonderingly, none had pierced the red pigment with which I had smoothly smeared every square inch of my body.
A SCOTS nurse has been struck off for putting women at risk of cancer by covering up smear test errors.