left·ism also Left·ism 
(lĕftĭz′əm)
(lĕftĭz′əm)n.
1. The ideology of the political left.
2. Belief in or support of the tenets of the political left.
leftist adj. & n.
- triglyphic
- trigness
- trigon
- trigonal
- trigonometric
- trigonometrical
- trigonometrically
- trigonometric function
- trigonometry
- trigram
- trigrammatic
- trigrammatically
- trigraph
- trigraphic
- trigraphically
- trihalomethane
- trihedral
- trihedron
- trihybrid
- triiodothyronine
- trike
- trilateral
- trilateralism
- trilateralist
- trilaterally