lamina vs venation

lamina

noun
  • one of the narrow thin parallel plates of soft vascular sensitive tissue that cover the flesh within the wall of a hoof 

  • the flat expanded part of a foliage leaf or leaflet 

  • either of two broad, flat plates of bone of a vertebra that is fused with and extends from the pedicle to the median line of the neural arch to form the base of the spinous process and that along with the pedicle forms the posterior part of the vertebral foramen 

  • a fine layer that occurs in sedimentary rocks 

venation

noun
  • The arrangement of veins in a leaf, wing, or similar structure. 

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