payload

[pey-lohd] /ˈpeɪˌloʊd/
noun
1.
the part of a cargo producing revenue or income, usually expressed in weight.
2.
the number of paying passengers, as on an airplane.
3.
Aerospace, Military.
  1. the bomb load, warhead, cargo, or passengers of an aircraft, a rocket, missile, etc., for delivery at a target or destination.
  2. the total complement of equipment carried by a spacecraft for the performance of a particular mission in space.
  3. the explosive energy of the warhead of a missile or of the bomb load of an aircraft:
    a payload of 50 megatons.
Origin
1925–30; pay1 + load
Example Sentences for payload
Of course, the ideal vessel should have lines as noble as the surroundings and room for a payload of toys.
Every minute or so, a new one pulls up ahead of the paving machines to release a flood of wet concrete from its payload.
Increasingly, tourists and adventure seekers have become the payload for scenic rides along formerly industrial tracks.
The loss of power will reduce significantly the payload they can carry-possibly to the point of making them useless.
Its a good idea if battery weight does not make up a significant part of the payload.
But getting there and returning home on one tank of gas while carrying a sizable payload is almost impossible.
The weight of the payload is distributed along the keel.
Then, commercial space operations can commence at low costs that allow a huge increase payload size.
First, they must somehow deliver their genetic payload into enough cells to do some good.
The latter payload successfully separated, unfurled itself, and has been exciting space scientists since.
British Dictionary definitions for payload
payload (ˈpeɪˌləʊd)
 
n
1.  that part of a cargo earning revenue
2.  a.  the passengers, cargo, or bombs carried by an aircraft
 b.  the equipment carried by a rocket, satellite, or spacecraft
3.  the explosive power of a warhead, bomb, etc, carried by a missile or aircraft: a missile carrying a 50-megaton payload

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Origin and History for payload
payload
1930, from pay (n. or v.) + load (n.). Originally the part of an aircraft's load from which revenue is derived (passengers, cargo, mail); fig. sense of "bombs, etc. carried by a plane or missile" is from 1936.
Online Etymology Dictionary, © 2010 Douglas Harper
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