Wiktionary英語版

出典:Wiktionary

polyiamond

出典:『Wiktionary』 (2026/02/21 21:30 UTC )

語源

Blend of poly- +‎ diamond, the polyiamond made up of two triangles being a diamond or rhombus.

発音

    名詞

    polyiamond (plural polyiamonds)

    1. (geometry) A polyform made by joining one or more equilateral triangles edge to edge in various arrangements, with every polyiamond corresponding to a polyhex.

    同意語

    • n-iamond

    派生語

    • diamond
    • hexiamond
    • moniamond
    • pentiamond
    • tetriamond
    • triamond

    Some authors also call the diamond (rhombus with a 60° angle) a calisson after the French sweet of similar shape.

    関連する語

    アナグラム

    • polydomain
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    ウィキペディア英語版

    出典:Wikipedia

    Polyiamond

    出典:『Wikipedia』 (2010/11/06 07:10 UTC 版)

    英語による解説

    ウィキペディア英語版からの引用
    引用

    A polyiamond (also polyamond or simply iamond) is a polyform in which the base form is an equilateral triangle. The word polyiamond is a back-formation from diamond, because this word is often used to describe the shape of a pair of equilateral triangles placed base to base, and the initial "di-" looked like a Greek prefix meaning "two-".

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