cyffyrddlin

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Welsh

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Etymology

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cyffyrdd (“junctions”) +‎ llin (“line”).

Noun

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cyffyrddlin m (plural cyffyrddlinau)

  1. (differential geometry, obsolete) tangent
    Synonym: tangiad

References

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