fallout

• POS: Noun, Verb (usu participle)
• HYPHEN: fall=out

CIDE DICTIONARY

fallout, n. 

•  the radioactive particles that settle to the ground after a nuclear explosion.  [WordNet 1.5]
•  the falling to the ground of radioactive particles lifted into the atmosphere by a nuclear explosion.  [PJC]
•  an incidental or unexpected effect, especially one which is undesirable, consequent to an event or process; ; -- usually used only in the singular; as, the fallout from the disclosure of the Lewinsky tapes made trouble for the President for months after the event; fallout from the stock market crash caused property prices to decline in the New York area.  [PJC]
•  one selected from a group by some criterion.  [PJC]

  "Corrective action was taken in 97 of the 418 fallouts from 3,787 patients at risk."  [PJC]
•  one who fails to maintain the same pace as and lags behind a group of which s/he is a member.  [PJC]

  "The executive officer's group noted all fallouts by name and policed them into a group to complete the run at a slower pace."  [PJC]

OXFORD DICTIONARY

fallout, n.
1 radioactive debris caused by a nuclear explosion or accident.
2 the adverse side-effects of a situation etc.

THESAURUS

fallout

A-blast, A-bomb shelter, H-blast, Mach front, activity, air pollution, airborne radioactivity, artificial radioactivity, atom blast, attritus, blast wave, bran, contamination, cosmic dust, crumb, crumble, curiage, decontamination, dust, dust ball, dust cloud, efflorescence, fallout shelter, farina, filings, fission particles, flash burn, flour, grits, groats, ground zero, half-life, hydrogen blast, kittens, lint, meal, mushroom cloud, natural radioactivity, nuclear radiation, powder, pussies, radiant energy, radiation, radioactive dust, radioactive radiation, radioactivity, radiocarbon dating, radiolucency, radiopacity, radiosensibility, radiosensitivity, raspings, saturation point, sawdust, smut, soot, specific activity