lamina vs scutum

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 

scutum

noun
  • One of the two lower valves of the operculum of a barnacle. 

  • The kneecap. 

  • A scute. 

  • An oblong shield made of boards or wickerwork covered with leather, with sometimes an iron rim; carried chiefly by the heavily armed infantry of the Roman army. 

  • A shield-like protection, such as the scutum protecting the back of a hard tick (cf. alloscutum, conscutum) 

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