penetration

(redirected from Penetrations)
Also found in: Dictionary, Thesaurus, Medical, Legal, Financial.

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

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.

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.

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.”

penetration

The successful unauthorized breach of a security perimeter. See penetration test.
References in periodicals archive ?
These key areas include: penetration rates of social networking services in the Arab region, including growth rate, demographic and gender breakdown; factors affecting adoption of these platforms in different Arab countries (e.
They must rotate together, communicate, stop the penetration, and then recover quickly to their regular players.
As in conventional construction, the rigid joint is made with a full penetration welded connection.
Generally, iron casting penetration defects are caused in two ways.
By early 2006, there were 550,000 mobile subscribers in the country, representing a penetration of around 20%, up from less than 2% penetration at the end of 2000.
VoIP will experience a more widespread launch in the industry in 2005, with penetration reaching 5% of cable modem subscribers or approximately two million customers.
And, almost all of our first quarter growth is attributable to increased penetration in the markets where we are deployed.
By end-2005, fixed-line telephone penetration was around 60% and mobile penetration was 99%.