1) Branching 2) Fork 3) Forking 4) Ramification 
forked or divided into three parts.
The juncture where the roots of teeth split into three roots.
1. A division into three branches. ... 2. The area where the tooth roots divide into three distinct portions. ... Origin: tri-+ L. Furca, fork. ... (05 Mar 2000) ... 
(tri″fәr-ka´shәn) division into three branches or parts, such as blood vessels, or teeth that have three roots. the site of such division.
Type: Term Pronunciation: trī′fŭr-kā′shŭn Definitions: 1. A division into three branches. 2. The area where the tooth roots divide into three distinct portions.
[n] - the act of splitting into three branches
noun the act of splitting into three branches