cyffyrddlin

Welsh

Etymology

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

Noun

cyffyrddlin m (plural cyffyrddlinau)

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

References

  • 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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