Definitions
American Heritage® Dictionary of the English Language, Fourth Edition
- n. A prismatoid having polygons with the same number of sides as bases, and faces that are parallelograms or trapezoids.
Century Dictionary and Cyclopedia
- n. A body that approaches to the form of prism; a prismatoid.
- n. A prismatoid whose base and top have the same number of sides, and every corresponding pair parallel. See prismatoid, 1.
Wiktionary
- n. geometry A prismatoid that has planar sides, and the same number of vertices in both of its parallel planes
- n. geometry An antiprism
GNU Webster's 1913
WordNet 3.0
- n. a prismatoid whose bases are polygons having the same number of sides and whose other faces are trapezoids or parallelograms
Etymologies
- prism + -oid. (American Heritage® Dictionary of the English Language, Fourth Edition)
Examples
“The volume of ore appertaining to any given sample can be considered as a prismoid, the dimensions of which may be stated as follows: --”
Principles of Mining Valuation, Organization and Administration
“(_WL_) + (_W_1 _L_1) + (_W_2 _L_2), etc. The length of the prismoid base _L_ for any given sample will be”
Principles of Mining Valuation, Organization and Administration
“The body is prismoid in form, and curved, so as to be convex in the longitudinal direction behind, concave in front.”
“It is conveniently described in two portions, viz., a medial flattened part and a narrow lateral prismoid portion.”
II. Osteology. 6c. The Bones of the Lower Extremity. 1. The Hip Bone
“The body is strong, and of well-marked prismoid form.”
“The body is prismoid in form, tapers gradually from the tarsal to the phalangeal extremity, and is curved longitudinally, so as to be concave below, slightly convex above.”
“It is prismoid in form, expanded above, where it enters into the knee-joint, contracted in the lower third, and again enlarged but to a lesser extent below.”
“The body is prismoid in form, narrower above than below, and slightly curved, so as to be convex lateralward.”
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