penetration

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penetration

1. Marketing the proportion of the total number of potential purchasers of a product or service who either are aware of its existence or actually buy it
2. another name for depth of field
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

penetration

[‚pen·ə′trā·shən]
(aerospace engineering)
That phase of the letdown from high altitude to a specified approach altitude.
(metallurgy)
The distance from the original surface of the base metal to that point at which weld fusion ends.
A surface defect on a casting caused by molten metal filling voids in the sand mold.
(ordnance)
Distance to which a projectile sinks into a target.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

penetration

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.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.

penetration

penetrationclick for a larger image
i. That portion of a published high-altitude instrument approach procedure that prescribes a descent path from the fix on which the procedure is based to a fix or an altitude from which an approach to the airport is made.
ii. A flight into hostile airspace as in to penetrate enemy air defense. Also, the depth to which something penetrates, as in “When the Allied bombers increased their penetration into Germany.”
iii. The term also refers to weather penetration, which implies a flight deep into a cloud with vertical development or into the eye of a tropical revolving storm, as in “the aircraft penetrated the cumulonimbus clouds and came out unscathed.”
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved

penetration

The successful unauthorized breach of a security perimeter. See penetration test.
Copyright © 1981-2019 by The Computer Language Company Inc. All Rights reserved. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction is strictly prohibited without permission from the publisher.
References in periodicals archive ?
While less velocity usually equals less expansion but more penetration because the "smaller" less-expanded bullet can penetrate more deeply.
How much UV light from solar radiation penetrates into a water body has been shown to be affected by chlorophyll content and dissolved organic matter (DOM)--organic material dissolved in water from decomposition of plants and animals.
It causes dyes to penetrate the surface of the polymer so that the impregnated images are highly resistant to wear.
Single-serving cans are helping wine penetrate markets that were unwelcoming of the glass bottle, like concert clubs.
It does not allow water to penetrate the concrete, so the liquid cannot freeze and expand below the surface.
As long as you choose modest heads with cutting diameters between 1 1/8 and 1.25 inches, they penetrate just as well as fixed-blade broadheads of the same size.
They refused to comment on whether the waves can penetrate glass.
Sunlight is unable to penetrate the ocean's deep waters.
The oils penetrate to one-millionth inch spaces to break the bond of rust and to provide lubrication at the first molecular level to free frozen metal parts.
Meanwhile, LCVs enable automakers to penetrate the automobile market in emerging countries.
In the sub-analyses, effects of vardenafil were evaluated by patients' responses to two key questions of the International Index of Erectile Function (IIEF) questionnaire: the ability to penetrate (question 3/Q3) and the ability to maintain an erection during intercourse (question 4/Q4).