H4Y4P3E1R1B3O1L1O1I1D2S1
23 points
HYPERBOLOIDS is validvalid
HYPERBOLOID, [n]
HYPERBOLOID, a solid figure in which some of the plane sections are hyperbolas [n]
HYPERBOLOID, [n]
HYPERBOLOID, a solid figure in which some of the plane sections are hyperbolas [n]