axial vs numeral

axial

adj
  • Relating to, resembling, or situated on an axis 

  • Belonging to the axis of the body, or to the axis of any appendage or organ 

  • In the same direction as the axis, parallel to the axis. 

  • oriented close to the axis running through the centre of a cyclohexane ring, as opposed to equatorial. See w:Axial bond. 

noun
  • A plane parallel to the surface of a tooth. 

  • A flight feather that appears between the primaries and secondaries on some birds. 

numeral

adj
  • Of or relating to numbers; numerical. 

noun
  • A number word, a simple or compound word for a number often having particular grammatical attributes depending on the language. 

  • A symbol that is not a word and represents a number, such as the Arabic numerals 1, 2, 3 and the Roman numerals I, V, X, L. 

  • A card whose rank is a number (usually including the ace as 1). 

  • A representation of a number composed of such symbols. 

How often have the words axial and numeral occurred in a corpus of books? (source: Google Ngram Viewer )