An official website of the United States government.

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

Concept Breadcrumbs

Preferred Term:

anaerobic conditions

The complete absence, or temporary absence, of gaseous or dissolved elemental oxygen in a given environment.
Concept Schemes:
Broader Concept:
Entry Terms:
  • hypoxic conditions
  • anoxic conditions
Download this Concept:
RDF/XMLCreated 2006-01-19, last modified 2018-02-28