Impression

(redirected from impression smear)
Also found in: Dictionary, Thesaurus, Medical, Legal, Encyclopedia.
Related to impression smear: impression surface

Impression

A user's view of an online advertisement. Each time a website viewer sees an online ad, this is one impression. The more impressions an ad receives, the more likely it is that a user will click on it. Most online ads are sold by cost per thousand of impressions. See also: CPC.
References in periodicals archive ?
The heart impression smears were stained with the Leishman's stains showed the bipolar organisms (Fig.
Detailed history of animals was taken, cellopane tape impression smears and ear roll swabs were taken from lesions and were stained with giemsa or cytological evaluation.
Impression smear cytology of left eye and penis has TVT cells characterized by increased nuclear to cytoplasmic ratio and cytoplasm contained 3-4 distinct vacuoles (Fig.
Impression smears prepared from egg fried colonies were stained with Giemsa stain and Mycoplasma specific pleomorphic coccoid bodies were observed under microscope at 1000X magnification (Fig.
Eschericia coli was isolated on routine culture of liver, but mycobacteria were not observed in fixed sections or impression smears of liver stained with Ziehl-Neelsen acid fast.
We found numerous acid-fast organisms in lung impression smears and tissue sections.
Two sets of impression smears and swabs from the eyes of noninfected cattle were also collected and refrigerated.
Impression smears of the lung tissue were prepared (Figs 1 and 2), and all tissues were submitted for histopathologic examination.
The CTVT was confirmed by impression smears that were taken both from growths on penis as well as ulcerated mass on lateral side of face.
Impression smears from the cut surfaces of lungs on staining by Ziehl-Neelsen method showed bundles of pink-stained acid-fast organisms.