TRAPEZOID

Pronunciation (US):

(GB):

 Dictionary entry overview: What does trapezoid mean? 

• TRAPEZOID (noun)
  The noun TRAPEZOID has 2 senses:

1. a quadrilateral with two parallel sides

2. the wrist bone between the trapezium and the capitate bones

  Familiarity information: TRAPEZOID used as a noun is rare.

 Dictionary entry details 

• TRAPEZOID (noun)

Sense 1

Meaning:

A quadrilateral with two parallel sides

Classified under:

Nouns denoting two and three dimensional shapes

Hypernyms ("trapezoid" is a kind of...):

quadrangle; quadrilateral; tetragon (a four-sided polygon)

Domain region:

America; the States; U.S.; U.S.A.; United States; United States of America; US; USA (North American republic containing 50 states - 48 conterminous states in North America plus Alaska in northwest North America and the Hawaiian Islands in the Pacific Ocean; achieved independence in 1776)

Derivation:

trapezoidal (resembling a trapezoid)

Sense 2

Meaning:

The wrist bone between the trapezium and the capitate bones

Classified under:

Nouns denoting body parts

Synonyms:

os trapezoideum; trapezoid; trapezoid bone

Hypernyms ("trapezoid" is a kind of...):

carpal; carpal bone; wrist bone (any of the eight small bones of the wrist of primates)

 Context examples 

A plane joint primarily between the second metacarpal and the trapezoid, which also connects with the trapezium and capitate.

(Carpometacarpal Joint 2, NCI Thesaurus)

The eight bones of the wrist: capitate bone, hamate bone, lunate bone (SEMILUNAR BONE), pisiform bone, SCAPHOID BONE, trapezium bone, trapezoid bone and triquetral bone.

(Carpal Bone, NLM, Medical Subject Headings)