Simple Browser : Welcome guest : log in
Home |  Graph |  ]  KB:  Language:   

Formal Language: 



KB Term: 

  Reef

Sigma KEE - Reef

more pictures...
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
reef
A Reef is a ridge of rock, coral, or sand at or near the surface of a WaterArea.
Relationships      
Parents land form A LandForm is the class of geographically and/or geologically distinct areas that occur on Earth's surface, including mountains, hills, plains, valleys, deltas, and features of submerged land areas such as the ocean floor.
Children coral reefCoralReef is the subclass of Reefs that are formed from living organisms that produce the limestone formations of the reef. Coral reefs include fringing reefs, barrier reefs, and Atolls.


Show full definition (without tree view)
Show full definition (with tree view)

Show without tree


Sigma web home      Suggested Upper Merged Ontology (SUMO) web home
Sigma version 3.0 is open source software produced by Articulate Software and its partners