Definition/Meaning  Word/Phrase 
space between two lines or planes that intersect; the inclination of one line to another; measured in degrees or radians 
angle

coordinate system for which the coordinates of a point are its distances from a set perpendicular lines that intersect at the origin of the system 
cartesian coordinate system

point where three areas or surfaces meet or intersect 
corner

point where two lines meet or intersect 
corner

point where two lines (paths or arcs etc.) intersect 
crossing

intersect to form X 
decussate

nonEuclidean geometry in which it is assumed that through any point there are two or more parallel lines that do not intersect a given line in the plane 
hyperbolic geometry

act of intersecting (as joining by causing your path to intersect your target's path) 
intersection

point where lines intersect 
intersection
,
intersection point
,
point of intersection

closed curve that does not intersect itself 
Jordan curve
,
simple closed curve

anything with a round or oval shape (formed by a curve that is closed and does not intersect itself) 
loop

space enclosed by three or more planes that intersect in a vertex 
polyhedral angle

weave in which the filling and warp threads intersect in such a way as to give a smooth compact surface with no distinguishable twill line 
satin weave

straight line or plane that touches a curve or curved surface at a point but does not intersect it at that point 
tangent

line, surface that touches but does not intersect another 
tangent

ringshaped surface generated by rotating a circle around an axis that does not intersect the circle 
toroid
,
torus
