axial vs fleck

axial

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

  • A plane parallel to the surface of a tooth. 

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

  • Relating to, resembling, or situated on an axis 

  • 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. 

fleck

noun
  • A small spot or streak; a speckle. 

  • A lock, as of wool. 

  • A flake. 

  • A small amount. 

verb
  • To mark (something) with small spots. 

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