tetragon

Other forms: tetragons

Definitions of tetragon

1. noun

   a four-sided polygon
   synonyms: quadrangle, quadrilateral

   types:

   parallelogram

   a quadrilateral whose opposite sides are both parallel and equal in length

   trapezium

   a quadrilateral with no parallel sides

   trapezoid

   a quadrilateral with one pair of parallel sides

   diamond, lozenge, rhomb, rhombus

   a parallelogram with four equal sides; an oblique-angled equilateral parallelogram

   rhomboid

   a parallelogram with adjacent sides of unequal lengths; an oblique-angled parallelogram with only the opposite sides equal

   rectangle

   a parallelogram with four right angles

   type of:

   polygon, polygonal shape

   a closed plane figure bounded by straight sides