fallout

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fallout,

minute particles of radioactive material produced by nuclear explosions (see atomic bombatomic bomb
or A-bomb,
weapon deriving its explosive force from the release of nuclear energy through the fission (splitting) of heavy atomic nuclei. The first atomic bomb was produced at the Los Alamos, N.Mex., laboratory and successfully tested on July 16, 1945.
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; hydrogen bombhydrogen bomb
or H-bomb,
weapon deriving a large portion of its energy from the nuclear fusion of hydrogen isotopes. In an atomic bomb, uranium or plutonium is split into lighter elements that together weigh less than the original atoms, the remainder of the mass
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; ChernobylChernobyl
, Ukr. Chornobyl, abandoned city, N Ukraine, near the Belarus border, on the Pripyat River. Ten miles (16 km) to the north, in the town of Pripyat, is the Chernobyl nuclear power station, site of the worst nuclear reactor disaster in history. On Apr.
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) or by discharge from nuclear-power or atomic installations and scattered throughout the earth's atmosphere by winds and convection currents. Heavier fallout particles tend to settle to earth around the explosion site and downwind from it soon after the explosion. Lighter particles may stay in the atmosphere for years. Radioactive decay products in fallout include strontium-90, potassium-40, carbon-14, and iodine-131. They may contaminate food supplies if taken up by plants and animals or contaminate water supplies by falling into streams. If they accumulate in the human body, they can form concentrated internal sources of dangerous radiation. Fallout may thus be a cause of leukemialeukemia
, cancerous disorder of the blood-forming tissues (bone marrow, lymphatics, liver, spleen) characterized by excessive production of immature or mature leukocytes (white blood cells; see blood) and consequently a crowding-out of red blood cells and platelets.
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, bone cancercancer,
in medicine, common term for neoplasms, or tumors, that are malignant. Like benign tumors, malignant tumors do not respond to body mechanisms that limit cell growth.
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, and other diseases. It can also cause genetic damage.

fallout

[′fȯl‚au̇t]
(electronics)
Failure of electronic components during burn-in.
(nucleonics)
The material that descends to the earth or water well beyond the site of a surface or subsurface nuclear explosion. Also known as atomic fallout; radioactive fallout.

fallout

1. the descent of solid material in the atmosphere onto the earth, esp of radioactive material following a nuclear explosion
2. any solid particles that so descend
References in periodicals archive ?
What NASA was going to do in case of a launch accident, said Kohn, was "monitor the fall-out as the plutonium fell.
But, as happens in families, there have been fall-outs.
Each team regards themselves as superior and the public fall-outs and wind-ups between the managers before the game just adds to the whole drama of the occasion.
but igh fees and complex contractual agreements can threaten fall-outs of McCartney proportions in the world of franchising.
Just a few weeks ago, the two men were making front-page news with one of the biggest public fall-outs in Liverpool's political arena for 20 years.
It is believed heavy rainfall over Liverpool five days after the explosion led to one of the heaviest radiation fall-outs in the country.
The police have a difficult enough job to do - made all the more difficult by being called in to referee squabbles and domestic fall-outs.
As well as highlighting fall-outs, the study of 2,000 mothers also revealed mother-in-laws were the most common culprits for dishing out unwanted advice.
Current statute is 26 years old and BAA believes this is one of the reasons for fall-outs between airports and airlines.
He had also been involved in fall-outs with club officials and players, midfielder Leon Britton recently admitting his relationship with Sousa was the major factor in seeing him leave South Wales this summer.
Some 10 studio albums - and fall-outs - later and it feels as though Tim Booth's seven-piece band has grown with me, oozing the heart and soul that few more contemporary bands seem to be able to match.
Otherwise, the entire Arab Gulf area could be plunged into a sectarian conflict between the Muslim Sunnis and Muslim Shiites and could bring devastating fall-outs to all the Arabs, Salem concluded.