polydrafter
hypotrochoid
circumscriptable
polygonar
polygonate
dimension
double-convex
coordinate axis
oblongular
gridpoint
polygonial
Gall-Peters projection
polygonous
Plücker coordinate
polygonically
trilinear
circular angle
vandyke
concave
parallel
trifan
rotund
hypergeometry
osculating circle
conjugate angles
geometrideous
Cartesian coordinate
triangle
three-cornered
translation
interlock
reference grid
oblique system of coordinates
equitriangular
quadrantally
squarely
mesh
nine-point circle
biarc
multifoil
rhumb
polygonal chain
beam compass
try square
plane sailing
squircular