noun ·Uncommon ·College level

Definitions

Noun

1. 1
   A (convex) quadrilateral with two (non-adjacent) parallel sides. Canada, US

   "There was a trapezoid of light on his shoulder, some bright fragment torn from a greater plane."

2. 2
   the wrist bone between the trapezium and the capitate bones wordnet
3. 3
   A convex quadrilateral with no sides parallel. Australia, British, New-Zealand
4. 4
   a quadrilateral with two parallel sides wordnet
5. 5
   The trapezoid bone of the wrist.

Show 1 more definition

6. 6
   The marked trapezoidal area immediately behind the goal line and the goal itself within which the goaltender may touch the puck.

Synonyms

All synonyms

trapeziumcube-shapedcubedcubiccubicalcubiform

Example

More examples

"Find the area of a trapezoid whose parallel sides are 9 and 12 centimeters."

Etymology

From Ancient Greek τραπέζιον (trapézion, “irregular quadrilateral”, literally “a little table”) + -oid (“resembling”).

Related phrases

Ames trapezoidisosceles trapezoidright trapezoidtrapezoid rulefour sidesgeometric figuregeometric shapegeometry figuresquarish shapetrapezoid boneweird square

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.