英和和英

語源

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

発音

• (Received Pronunciation) IPA: /ˈtɹæpəzɔɪd/, /trəˈpiːzɔɪd/
• enPR: tră'pəzoid, (General American) IPA: /ˈtɹæpəzɔɪd/

名詞

trapezoid (plural trapezoids)

1. (geometry, US, Canada) A (convex) quadrilateral with two (non-adjacent) parallel sides.
   • 2023, Brandon Taylor, The Late Americans, Jonathan Cape, page 178:

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

2. (geometry, British, Australia, New Zealand) A convex quadrilateral with no sides parallel.
3. (anatomy) The trapezoid bone of the wrist.
4. (ice hockey) The marked trapezoidal area immediately behind the goal line and the goal itself within which the goaltender may touch the puck.

同意語

• (geometry, convex quadrilateral with two non-adjacent parallel sides): (British) trapezium
• (geometry, convex quadrilateral with no parallel sides): irregular quadrilateral, (US) trapezium

派生語