Impression

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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 most commonly used preliminary impression material in this survey was irreversible hydrocolloid by (76%).
Imagine no mixing bowls and spatulas to clean up after taking a preliminary impression.
Preliminary impression was made and diagnostic cast was obtained.
This is in contrast to the studies carried out in other parts of the world where irreversible hydrocolloid (alginate) is the primary material of choice as preliminary impression for many programs (87%).
This was just a preliminary impression however, based on UN accounts of NATO's methodology.
However, I must leave it to others to confirm (or alternatively disprove) this preliminary impression by undertaking the detailed and systematic study of the vocabulary and the style of the Life which Bartelink's edition has at last made possible.

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