location 
a space defined by a set of coordinates 
vertex 
a zerodimensional part of a higher dimensional entity,
e.g. part of a geometry, a polygon, or polyhedron 
nsimplex 
(n+1) affinely independent vertices 
point 
a zerosimplex 
edge 
a onesimplex 
triangle 
a twosimplex 
tetrahedron 
a threesimplex 
node 
not a point, but part of a tree data structure 
facet 
a twodimensional entity, e.g. a polygon 
face 
the verb as in ``facing a direction'' 
nonplanar 
curved, but mostly used as short form for
piecewiseplanar 
topology 
the connectivity of a set of points where adjacency
is given by the edges regardless of the location of the points 
boundary 
(n1)dimensional topology in 
grid 
ndimensional structured topology in ,
numerical grid 
mesh 
ndimensional unstructured topology in 
surface mesh 
(n1)dimensional unstructured topology in

triangulation 
a simplicial complex [118] where the
highest order element
is a 2simplex in 
tetrahedralization 
a simplicial complex where the highest
order element is
a 3simplex in 
Triangulation 
special triangulation or tetrahedralization as
for example in ``Delaunay Triangulation'' or ``Steiner
Triangulation'',
independent of the order of the
simplices 
boundary consistent 
incorporating the boundary, as opposed to
intersecting or overlapping 
boundaryfitted 
nicely aligned with the boundary and not just
boundary
consistent 
boundary conforming 
This term is avoided because it is
sometimes used in different ways throughout literature, e.g. as boundary
consistent or as boundaryfitted. 