Skip to main content
trapezoid

trapezoid

1 9.5
A small wrist bone near the base of the index finger
  • noun
  • /trəˈpɛzɔɪd/
  • Specialized
translation icon : hueso trapezoide
  • And that corresponds to the scaphoid, lunate, triquitril, pisiform, trapezium, trapezoid, recapitate and hamate.

And that corresponds to the scaphoid, lunate, triquitril, pisiform, trapezium, trapezoid, recapitate and hamate.

Examples

  • The doctor explained that the injury involved the trapezoid bone in the wrist.

  • In a detailed anatomy lesson, we learned about the trapezoid bone's location in the hand.

  • During the surgery, the surgeon carefully examined the trapezoid among the wrist bones.

Synonyms

trapezoid bone
vstrapezoid
  • Specialized
7.6

A small bone in the wrist under the base of the index finger

is the common English phrasing for the same bone
os trapezoideum
vstrapezoid
  • Specialized
9.9

A small bone in the wrist near the base of the index finger

has identical meaning but uses a Latin anatomical name

Compounds

trapezoid bone
  • Specialized
7.6

A small bone in the wrist under the base of the index finger

Surface Forms

trapezoid singular
trapezoids plural

Morphology

trapezoid = trapez + oid

Although formed from the same combining form and suffix, the anatomical sense (a specific wrist bone) is a specialized name that learners cannot derive from the components.

Etymology

Trapezoid for the wrist bone comes from the same Greek root trapezion, meaning 'little table', because the small bone was thought to look like a tiny four-sided table. So the name points to the bone's shape and helps you remember where it sits in the hand.