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impression
(redirected from impression smear)

   Also found in: Dictionary/thesaurus, Medical, Legal, Financial, Wikipedia 0.03 sec.
impression
An advertisement on a Web page. If ads on the Web are not based on a click-through rate (CTR), they are typically sold on a cost per thousand (CPM) basis. One impression is one banner ad displayed on one page. Also called a "view" or "ad view." See banner ad, interstitial ad, pay-per-click and click-through rate.
impression
Dentistry an imprint of the teeth and gums, esp in wax or plaster, for use in preparing crowns, inlays, or dentures

impression [im′presh·ən]
(geology)
A form left on a soft soil surface by plant parts; the soil hardens and usually the imprint is a concave feature.
(graphic arts)
A print made from an engraved plate.
A press run or printing of a book.
(metallurgy)
A machined cavity in a forging die for production of a specific geometric shape in the workpiece.


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This identification is done by various methods like scotch tape sampling, impression smear, skin scraping with blade, cotton swab method, and skin biopsy.
Impression smears and biopsy tissues were sent to the Special Pathogens Unit, National Institute for Communicable Diseases (NICD), Sandringham, South Africa, and to the Health Protection Agency (HPA), Centre for Emergency Preparedness and Response, Porton Down, Salisbury, United Kingdom.
Most dermatology texts rely heavily on images, not only to identify the disease in the animal but also to illustrate diagnostic samples from tests, such as tape prep examinations and impression smears.
 
 
 
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