terminal velocity

terminal velocity

1. the constant maximum velocity reached by a body falling under gravity through a fluid, esp the atmosphere

2. the maximum velocity that an aircraft can attain, as determined by its total drag

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terminal velocity [′tər·mən·əl və′läs·əd·ē]

(fluid mechanics)

The velocity with which a body moves relative to a fluid when the resultant force acting on it (due to friction, gravity, and so forth) is zero.

(physics)

The maximum velocity attainable, especially by a freely falling body, under given conditions. Also known as terminal speed.

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terminal velocity

In an air-conditioning system, the average velocity of an airstream at the end of its throw; one of the indicators of drafty conditions and comfort level.