| trapezoid bone |
In human anatomy, the trapezoid bone (lesser multangular bone; os multangulum minus) is a bone in the hands. It is the smallest bone in the distal row. It may be known by its wedge-shaped form, the broad end of the wedge constituting the dorsal, the narrow end the volar surface; and by its having four articular facets touching each other, and separated by sharp edges. The superior surface, quadrilateral, smooth, and slightly concave, articulates with the navicular. ...
출처: en.wikipedia.org/wiki/Trapezoid_bone
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| trapezoid |
The usual definition of a trapezoid requires that it have exactly one pair of parallel sides. However, the UCSMP textbook Geometry (1997) has the definition "a quadrilateral with at least one pair of parallel sides." (In this textbook, an isosceles trapezoid is defined as "a trapezoid with a pair of base angles equal in measure.")
출처: members.aol.com/jeff570/ambiguities.html
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| trapezium |
a quadrilateral or four-sided figure with none of its sides parallel.
출처: www.biology.lsu.edu/heydrjay/ThomasSay/terms.html
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| trapezoidal |
Having a quadrate outline with one longitudinal dimension greater than the other. Trigonal: Triangular in form or outline.
출처: www.fish.washington.edu/naturemapping/mollusks/glo...
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| trapezoid |
a four sided figure with two parallel sides
출처: www.msnucleus.org/membership/html/k-6/rc/dictionar...
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