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biohazard

[bahy-oh-haz-erd] /ˈbaɪ oʊˌhæz ərd/
noun
1.
a pathogen, especially one used in or produced by biological research.
2.
the health risk posed by the possible release of such a pathogen into the environment.
Origin
Related forms
biohazardous, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for biohazardous

biohazard

/ˌbaɪəʊˈhæzəd/
noun
1.
material of biological origin that is hazardous to humans
Derived Forms
biohazardous, adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for biohazardous

biohazard

n.

also bio-hazard, 1973, from bio- + hazard (n.).

Online Etymology Dictionary, © 2010 Douglas Harper
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biohazardous in Medicine

biohazard bi·o·haz·ard (bī'ō-hāz'ərd)
n.

  1. A biological agent, such as a virus or a condition that constitutes a threat to humans, especially in biological research or experimentation.

  2. The potential danger or harm from exposure to such an agent or condition.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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biohazardous in Science
biohazard
  (bī'ō-hāz'ərd)   
A biological agent, such as an infectious microorganism, that constitutes a threat to humans or to the environment, especially one produced in biological research or experimentation.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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