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
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

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.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

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.
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References in periodicals archive ?
Divina Theologia, quae est exemplar nostrae Theologiae, est practica et speculativa simul; ergo et nostra Theologia, quae est impressio illius scientiae divinae>>.
(10)"Est enim impressio quaedam et sigillatio divinae sapientiae in nobis, ut mens humana dei sapientes sit sigillum, impressa formis et rationibus causae primae in sapientia sua creationis et reparantis et glorificantis sua causata"(ALBERTUS MAGNUS, 1978, ps.
O avanco tecnico conseguido nos grandes centros urbanos, ao mesmo tempo que impressio nam os poetas, causa-lhes tambem repulsa.