The Environment Ontology

EnvO is a community ontology for the concise, controlled description of environments

ENVO is an expressive, community ontology which helps humans, machines, and semantic web applications understand environmental entities of all kinds, from microscopic to intergalactic scales. As a FAIR-compliant resource, it promotes interoperability through the concise, controlled description of all things environmental.

For further reading, please see:

Buttigieg PL, Pafilis E, Lewis SE, Schildhauer MP, Walls RL, & Mungall CJ (2016) The environment ontology in 2016: bridging domains with increased scope, semantic density, and interoperation. J Biomed Semant, 7(1), 57.


Buttigieg PL, Morrison N, Smith B, Mungall CJ, & Lewis SE (2013) The environment ontology: contextualising biological and biomedical entities. J Biomed Semant, 4(1), 43.

Please use the navigation bar on the left to browse through the site where you will find information about the project, how to use ENVO for annotation, and how to participate.

If you're hunting for a term, please visit the Browse page. If you would like to download and work with ENVO, you'll find links to our main release files in the Downloads section and also on our GitHub page.

If you would like to contribute terms to ENVO, please create a new term request (NTR) via our GitHub issue tracker. Check out our participation page for more guidance.