alternationˌɔl tərˈneɪ ʃən, ˌæl-
alternation (n)
- plural
- alternations
English Definitions:
alternation (noun)
successive change from one thing or state to another and back again
"a trill is a rapid alternation between the two notes"
alternation (Noun)
The reciprocal succession of (normally two) things in time or place; the act of following and being followed by turns; alternate succession, performance, or occurrence; as, the alternation of day and night, cold and heat, summer and winter, hope and fear.
alternation (Noun)
The response of the congregation speaking alternately with the minister.
alternation (Noun)
ablaut
alternation (Noun)
The "inclusive or" truth function.
alternation (Noun)
A sequence that alternates between positive and negative values. (Sometimes wrongly used to mean a permutation.)
Alternation
In geometry, an alternation is an operation on a polyhedron or tiling that removes alternate vertices. Only even-sided polyhedra can be alternated, for example the zonohedra. Every 2n-sided face becomes n-sided. Square faces disappear into new edges. An alternation of a regular polyhedron or tiling is sometimes labeled by the regular form, prefixed by an h, standing for half. More generally any vertex-uniform polyhedron or tiling with a vertex configuration consisting of all even-numbered elements can be alternated. For example the alternation a vertex figure with 2a.2b.2c is a.3.b.3.c.3 where the three is the number of elements in this vertex figure. A special case is square faces whose order divide in half into degenerate digons. So for example, the cube 4.4.4 is alternated as 2.3.2.3.2.3 which is reduced to 3.3.3, being the tetrahedron, and all the 6 edges of the tetrahedra can also be seen degenerate faces of the original cube.
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"alternation." Kamus.net. STANDS4 LLC, 2024. Web. 8 Nov. 2024. <https://www.kamus.net/english/alternation>.
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