biohazardous

biohazard

[bahy-oh-haz-erd]
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:
bio- + hazard

biohazardous, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To biohazardous
Collins
World English Dictionary
biohazard (ˌbaɪəʊˈhæzəd)
 
n
material of biological origin that is hazardous to humans
 
bio'hazardous
 
adj

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
Etymonline
Word Origin & History

biohazard
c.1973, from bio- + hazard.
Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
American Heritage
Medical Dictionary

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.
Cite This Source
American Heritage
Science Dictionary
biohazard   (bī'ō-hāz'ərd)  Pronunciation Key 
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.
Cite This Source
Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature