trapezoid

1. 1.

   a quadrilateral with two parallel sides

   Broaderquadrilateral

   United States

2. 2.

   the wrist bone between the trapezium and the capitate bones

   Synonymstrapezoid boneos trapezoideum

   Broadercarpal bone

Other forms of trapezoid

plural

trapezoids·

Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.

Questions about trapezoid

What does trapezoid mean?

trapezoid means "a quadrilateral with two parallel sides". That is the primary sense; the word has 2 in total, listed in full on this page.

How many syllables are in trapezoid?

trapezoid has 3 syllables: tra-pe-zoid. The stress falls on "tra".

What is another word for trapezoid?

Close synonyms include trapezoid bone, os trapezoideum. Each sense on this page lists its own synonyms, because a word with several meanings rarely has one substitute that works for all of them.

Is trapezoid a common word?

trapezoid is banded "Rare" — specialist or archaic — most readers will not have met it. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.