Standard Lemma guide
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
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noun
A polyform made by joining N-2 triangles edge to edge in various arrangements, each of these triangles being a right triangle with angles 30°, 60° and 90°.
Definition source: English Wiktionary via Wiktextract
Topics: geometry, mathematics, sciences
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
History
From poly- + draft + -er, from drafting triangle.
