
Measure of the degree to which a product or promotion has reached the individuals in a geographic area or market. For example, an ethnic food product such as taco sauce would have a high penetration in Texas or New Mexico and a low penetration in New England. However, if it is a popular brand of taco sauce it could have a high penetration in the taco sauce market (consumers of Mexican food) within New England. Similarly, a Yiddish radio program would have a higher penetration in New York City than in upper New York State. The ultimate high-penetration advertising campaign is the one employed by Coca-Cola, which reaches a great number of people in virtually every region of the world. See also market penetration.
noun
n. 1. in intelligence, the recruitment of agents within, or the infiltration of agents or technical monitoring devices in, an organization or group for the purpose of acquiring information or of influencing its activities.
2. in land operations, a form of offensive that seeks to break through the enemy's defense and disrupt the defensive system.
See the Introduction, Abbreviations and Pronunciation for further details.
1. The intersection of two vaulting surfaces.
2. The consistency of a bituminous material expressed as the distance (in hundredths of a centimeter) that a standard needle vertically penetrates a sample of the material under known conditions of loading, time, and temperature. Unless otherwise specified, the load, time, and temperature are understood to be 100 g, 5 sec, and 25°C (77°F), respectively.
(DOD, NATO) In land operations, a form of offensive which seeks to break through the enemy's defense and disrupt the defensive system.

The ability of radiation to extend down into and go through substances. The degree of penetration is determined by the kilovoltage.

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