Hypertext Webster Gateway: "trapezoidal"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Trapezoidal \Trap`e*zoid"al\, a. [Cf. F. trap['e]zo["i]dal.]
1. Having the form of a trapezoid; trapezoid.
2. (Min.) Trapezohedral.
From WordNet (r) 1.7 (wn)
trapezoidal
adj : resembling a trapezoid
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