obligate anaerobe


[v. ob-li-geyt; adj. ob-li-git, -geyt]
Obligate could be:

  • A verb (see obligation)
  • An adjective meaning "by necessity" (antonym facultative) and used mostly in biology, especially in the phrases:
    • Obligate parasite, a parasite that cannot survive without its host
    • Obligate intracellular parasite, a parasitic microorganism that cannot reproduce outside their host cell
    • Obligate aerobe, an organism that cannot survive without oxygen
    • Obligate anaerobe, an organism that cannot survive in the presence of oxygen
    • Obligate air-breather, a complex organism which obtains required oxygen directly from the atmosphere through respiration rather than extracting dissolved oxygen from water, as, for example, the South American lungfish

See also

Search another word or see obligate anaerobeon Dictionary | Thesaurus |Spanish
Copyright © 2015 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature