impression

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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 ?
In part 1 the functional impression of the recommended hydrocolloids due to its very accurate nature and ease of manipulation.
The success of a MOI depends on the accuracy of recording with the same functional impression the characteristics of two different structures: the denture supporting tissues and the implant positions.
Perhaps to offset this formal rather than functional impression, Kelley has added onto one board a painted reproduction of his felt banner from 1990, calling an audition for someone to play the poet and filmmaker Pier Paolo Pasolini: a humorous but somewhat obvious nod to the show's primarily Italian public.

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