tetract

adjective

Roget 95: four; quaternary, quaternal^†; quadratic; quartile; tetract^†, tetractic^†, tetractinal^†; tetrad, tetragonal; square, quadrate.   

noun

Roget 95: quaternity^†, four, tetrad, quartet, quaternion, square, quarter.    [planar form with four sides] tetract^†, tetragon, quadrangle, rectangle.    [three dimensional object with four surfaces] tetrahedron.    quadrature, quadrifoil, quadriform, quadruplet; quatrefoil.    [object or animal with four legs] tetrapod.    [geographical area with four sides] quadrangle, quad [Coll.].    [electromagnetic object] quadrupole.    [four fundamental studies] quadrivium.    ... show more

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