Strip
From polycount
A strip one of the ways that Triangles can be created to reuse Vertex Transforms, and thus save Memory and also Rendering time.
Once you have drawn one triangle, the next triangle only needs to load the Coordinate of one additional vertex in order to draw itself, because it can re-use the vertex transforms that were already performed on its neighbor triangle.
But your game engine must specifically support strips for it to work. Sometimes also called tri-strips. See also Fan.