QUADRIC SURFACEquadric surface · English · Reference checkedReferenceOpen English WordNet 2024oewn2024:lemma:QUADRIC SURFACETier 1Ordinal146Pythagorean65Classical140Reverse232Reverse Reduction88Standard866Final Large866Ordinal155Reduced38Atbash332Isopsephy1781Ordinal179Abjad709