noun (plural trapezia-zēə or trapeziums)
1.1North American A quadrilateral with no sides parallel. Compare with trapezoid.
- With the help of square, rhombus, rectangle, parallelogram, trapezium, equilateral, isosceles, diamond and kite shapes the direct and indirect approaches to teach the Pythagoras Theorem and other mathematical concepts is possible.
- On plan the auditorium is a trapezium rising three levels high inside its rectangular confines with rehearsal and dressing rooms fitted around two edges.
1.2British A quadrilateral with one pair of sides parallel.
- The types of shapes for which the area is calculated include triangles, rectangles, circles, trapeziums.
- In particular he finds, in book 1, the centre of gravity of a parallelogram, a triangle, and a trapezium.
- They have been made in many shapes: triangular or trapeziform, ‘pig's head’ shape (a trapezium with concave ‘cheeks’, popularly known in Italy as strumento di porco), wing or harp-shaped, or rectangular.
2 (also os trapezium) Anatomy A bone in the wrist below the base of the thumb.
- These involved, in addition to the base of the first carpometacarpal joint, the trapezium, navicular, surrounding fascial structures or the abductor pollicis brevis muscle.
- The insertion may ascend on the lateral face of the radius or may be extended distally to the navicular, trapezium, or base of the third metacarpal bone.
- The distal row of carpals includes the hamate, capitate, trapezium, and trapezoid, which are closely approximated to the metacarpals.
Late 16th century: via late Latin from Greek trapezion, from trapeza 'table'. The term has been used in anatomy since the mid 19th century.
Words that rhyme with trapeziumcaesium (US cesium), magnesium
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