seithongl

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Welsh[edit]

Etymology[edit]

From saith (“seven”) +‎ ongl (“angle”).

Pronunciation[edit]

  • IPA(key): /ˈsei̯θɔŋl/, [ˈsei̯θɔŋl̩]

Noun[edit]

seithongl m (plural seithonglau, not mutable)

  1. heptagon
    Synonym: heptagon

Further reading[edit]

  • R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke et al., editors (1950–present), “seithongl”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies
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