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# terminal velocity

noun
1.
Physics.
1. the velocity at which a falling body moves through a medium, as air, when the force of resistance of the medium is equal in magnitude and opposite in direction to the force of gravity.
2. the maximum velocity of a body falling through a viscous fluid.
2.
Rocketry, Ballistics.
1. the greatest speed that a rocket, missile, etc., attains after burnout or after leaving the barrel of a gun.
2. the speed of a missile or projectile on impact with its target.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for terminal velocity
• The amount of heat and pressure on his arms and body will be no different than at terminal velocity at closer to sea level.
• To be even more pedantic, that is its' acceleration until it reaches terminal velocity.
• It falls at terminal velocity the rest of the way for several minutes before impacting the ground.
• They fall at terminal velocity and are warm enough to melt a little ice.
• There are other efforts that have not yet achieved the kind of terminal velocity necessary for bubble status.
• In terminal velocity, the air resistance is equal to the weight.
• It isn't the terminal velocity that's so impressive, it's how quickly and effortlessly you get there.
• First, you should rule out terminal velocity of the ball bearing.
• There is an upward flow that is nearly equal to the terminal velocity of the cylinders.
British Dictionary definitions for terminal velocity

## terminal velocity

noun
1.
the constant maximum velocity reached by a body falling under gravity through a fluid, esp the atmosphere
2.
the velocity of a missile or projectile when it reaches its target
3.
the maximum velocity attained by a rocket, missile, or shell flying in a parabolic flight path
4.
the maximum velocity that an aircraft can attain, as determined by its total drag
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Encyclopedia Article for terminal velocity

steady speed achieved by an object freely falling through a gas or liquid. A typical terminal velocity for a parachutist who delays opening the chute is about 150 miles (240 kilometres) per hour. Raindrops fall at a much lower terminal velocity, and a mist of tiny oil droplets settles at an exceedingly small terminal velocity. An object dropped from rest will increase its speed until it reaches terminal velocity; an object forced to move faster than its terminal velocity will, upon release, slow down to this constant velocity.

Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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### Difficulty index for terminal velocity

Few English speakers likely know this word

### Word Value for terminal

10
13
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