polyiamond
English
[edit]
Etymology
[edit]Blend of poly- + diamond, the polyiamond made up of two triangles being a diamond or rhombus.
Pronunciation
[edit]Noun
[edit]polyiamond (plural polyiamonds)
- (geometry) A polyform made by joining one or more equilateral triangles edge to edge in various arrangements. Every polyiamond corresponds to a polyhex,
Synonyms
[edit]Derived terms
[edit]| Name | Number of forms | Forms | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| moniamond | 1 |
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| diamond | 1 |
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| triamond | 1 |
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| tetriamond | 3 |
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| pentiamond | 4 |
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| hexiamond | 12 |
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Some authors also call the diamond (rhombus with a 60° angle) a calisson after the French sweet of similar shape.