• WordNet 3.6
    • n deactivation the act of deactivating or making ineffective (as a bomb)
    • n deactivation breaking up a military unit (by transfers or discharges)
    • ***
Century Dictionary and Cyclopedia
    • n deactivation Loss of radioactivity: said of radium and its emanations, and of other radio-active substances.
    • ***


In literature:

Conn used the manual control to set it down and deactivate it, then got out and went to examine it.
"The Cosmic Computer" by Henry Beam Piper
Are those alarms deactivated?
"Anything You Can Do ..." by Gordon Randall Garrett
You have to relax, deactivate the generator as it were.
"A Matter of Honor" by Ann Wilson
They sent Gus here to be deactivated an' trained again.
"The Machine That Saved The World" by William Fitzgerald Jenkins
You've been deactivated nearly a year.
"The Love of Frank Nineteen" by David Carpenter Knight
It is real in substance, though completely deactivated.
"Deathworld" by Harry Harrison
It will not be possible to deactivate it before 12.45 hours.
"The Lost Kafoozalum" by Pauline Ashwell
Far ahead, he knew, other rat robots were stationed, watching and waiting, ready to deactivate the Nipe's detection devices at just the right moment.
"Anything You Can Do" by Gordon Randall Garrett
He cursed himself again for screwing up the golden opportunity to deactivate the gantry and bring the proceedings to a halt.
"Project Cyclops" by Thomas Hoover

In news:

A company representative gives an overview of the gun, which includes a "striker deactivator" that allows a user to disassemble it without pressing the trigger.
The Ravens deactivated a few surprises for Sunday's home game against the Dallas Cowboys, including starting left guard Ramon Harewood.
Police deactivate bomb found in vehicle.
Hirman said the Federal Way bomb squad deactivated the device and police finished securing the scene just before 5 p.m. Investigators found black powder in the device, which Hirman said means it was an active improvised explosive device.
Rex Grossman accepts decision to deactivate him for first two games.
Controversial Rotation System Deactivated for 2012.
With the deactivation of the midyear rotation in 2012, Gabriel Medina (BRA), 17, will be a mainstay amongst the world's elite throughout the whole of next season.
Microsoft to Deactivate Botnet Army.
Watson attending Enterprise deactivation .
Ceremony to mark deactivation of chemical activity program.
AOPA submitted comments on Oct 4 opposing as baseless the proposed deactivation of Victor airway 284 between the Sea Isle (SIE) and Cedar Lake (VCN) vortacs in eastern New Jersey.
Police deactivated the cameras during the summer.
30 this morning, the City of Lubbock announced that it has deactivated its Emergency Operations Center.
In next year's budget talks, City Council will consider completing the final piece of the Town Center Master Plan - a decorative restoration of the deactivated railroad bridge on SOM Center Road.
It's also worth noting that celebs deactivate their Twitter accounts all the time.

In science:

These random walkers start to diffuse, and eventually one of them is trapped at the nearest site occupied by a trap (or deactivates it).
Multiparticle trapping problem in the half-line
Since all DSP modules react on available data, a scheduler determines the relation among DSP modules, and activates or deactivate them according to the relation.
EPspectra: A Formal Toolkit for Developing DSP Software Applications
Vij can take any value between -1 and 1, and is more convenient to limit the range to the interval [0, 1] in other to get no contribution from deactivated neurons.
Study of accelerator neutrino interactions in a liquid argon TPC
Icons are also available for ob jects in the Yale Bright Star catalog, although they are deactivated in the current image.
Sky in Google Earth: The Next Frontier in Astronomical Data Discovery and Visualization
Let A and B represent the activation of Alice’s and Bob’s transmitters; respectively, Ac and B c represent their deactivation, and E 1 → E 2 represents the occurrence of event E 1 and its classification by Eve as event E 2.
Randomization for Security in Half-Duplex Two-Way Gaussian Channels