smear

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smear

a preparation of blood, secretions, etc., smeared onto a glass slide for examination under a microscope

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.
References in periodicals archive ?
This week also sees the #SmearFor-Smear campaign to raise awareness by posting smeared lippy selfie on Twitter with the #SmearForSmear hashtag and nominating friends to do the same.
Scanning electron microscopic investigation of smeared layer on root canal walls J of Endont: 1984:10:10: 477-83.
1 : to spread or soil with something oily or sticky The window was smeared with fingerprints.