Prismatoid

Definition: Prismatoid

Prismatoid

Noun

1. A polyhedron whose vertices all lie in one or the other of two parallel planes; the faces that lie in those planes are the bases of the prismatoid.

Specialty Definition: Prismatoid

A prismatoid is a polyhedron where all vertices lie in two parallel planes. Under some circumstances I forget it is called a prismoid. Some particular families of prismatoids:

Prisms, where the polygons in each plane are congruent and joined by rectangles or parallelograms;
Antiprisms, where the polygons in each plane are congruent and joined by an alternating strip of triangles;
Frustrums, where the polygons are similar and joined by trapezoids;
Pyramids, where one plane contains only a single point;
Cupolas, where the polygon in one plane contains twice as many points as the other and is joined to it by alternating triangles and rectangles.

Derivations: Prismatoid

Anagrams: Prismatoid

Scrabble® Enable2K-Verified Anagrams
	Words within the letters "a-d-i-i-m-o-p-r-s-t"
	-2 letters: atropism, parodist, parotids, pastromi, prismoid, triadism.
	-3 letters: airpost, amorist, armpits, daimios, diapirs, diarist, diatoms, dispart, disport, impairs, imparts, impasto, imports, mastoid, midairs, mispart, parotid, simitar, sparoid, spiroid, stardom, torpids, tripods, tropism, tsardom.
	-4 letters: admits, adopts, adroit, amidst, aorist, ariosi, aristo, armpit, aroids, daimio, diapir, diatom, disarm, droits, idioms, idiots, impair, impart, import, impost.
	Words containing the letters "a-d-i-i-m-o-p-r-s-t"
	+1 letter: prismatoids.
	+2 letters: diastrophism, palindromist.
	+3 letters: diastrophisms, palindromists.
	+4 letters: endoparasitism, predominations, premeditations.
	+5 letters: endoparasitisms, hermaphroditism, misappropriated.
Source: compiled by the editor from various references; see credits. SCRABBLE® is a registered trademark. All intellectual property rights in and to the game are owned in the U.S.A and Canada by Hasbro Inc., and throughout the rest of the world by J.W. Spear & Sons Limited of Maidenhead, Berkshire, England, a subsidiary of Mattel Inc. Mattel and Spear are not affiliated with Hasbro.

Alternative Orthography: Prismatoid

Hexadecimal (or equivalents, 770AD-1900s) (references)

50 72 69 73 6D 61 74 6F 69 64

Leonardo da Vinci (1452-1519; backwards) (references)

American Sign Language (origins from 1620-1817 in Italy and, especially, France) (references)

⁼

Semaphore (1791, in France) (references)

Braille (1829, in France) (references)

Morse Code (1836) (references)

.--. .-. .. ... -- .- - --- .. -..

Dancing Men (Sir Arthur Conan Doyle, 1903) (references)

Binary Code (1918-1938, probably earlier) (references)

01010000 01110010 01101001 01110011 01101101 01100001 01110100 01101111 01101001 01100100

HTML Code (1990) (references)

&#80 &#114 &#105 &#115 &#109 &#97 &#116 &#111 &#105 &#100

ISO 10646 (1991-1993) (references)

0050 0072 0069 0073 006D 0061 0074 006F 0069 0064

British Sign Language (Fingerspelling, BSL; 1992, British Deaf Association Dictionary of British Sign Language) (references)

Encryption (beginner's substitution cypher): (references)

Prismatoid

Definition: Prismatoid

Prismatoid

Noun

Crosswords: Prismatoid

Specialty Definition: Prismatoid

Derivations: Prismatoid

Derivations

Anagrams: Prismatoid

Scrabble® Enable2K-Verified Anagrams

Alternative Orthography: Prismatoid

50 72 69 73 6D 61 74 6F 69 64

.--. .-. .. ... -- .- - --- .. -..

01010000 01110010 01101001 01110011 01101101 01100001 01110100 01101111 01101001 01100100

&#80 &#114 &#105 &#115 &#109 &#97 &#116 &#111 &#105 &#100

0050 0072 0069 0073 006D 0061 0074 006F 0069 0064

50847585796786817570

INDEX

Derivations
	Words beginning with "prismatoid": prismatoids. (additional references)
Source: compiled by the editor, based on several corpora (additional references).