impression

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Related to impression smear: impression surface

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.

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.
References in periodicals archive ?
The heart impression smears were collected on the clean sterile slide for the bacteriological examination.
discomfort, evidenced by pruritus, erythema/lichenification, head shaking, exudate from ear canal and examination of tape impression smear and ear roll swab and were diagnosed as Malassezia otitis externa and were included for two week therapeutic protocol.
Impression smears were collected from ear lesions and stained by Giemsa stain.
Bats involved in incidents involving public health were tested for ABLV infection by immunofluorescence assay (IFA) on brain impression smears by using a fluorescein isothiocyanate-conjugated monoclonal (Fujirebio Diagnostics, Malvern, PA) or polyclonal (Biorad, Hercules, CA) antibodies to the nucleocapsid protein.
Impression smear cytology from left eye and penis was done.
Impression smears were taken from tumor mass, then fixed in methanol and stained with Giemsa's stain.
2) was observed along with Malassezia on examination of tape impression smear (100 X).
An impression smear was taken from ruptured pustules and stained with gram's.