receptacle vs torus

receptacle

noun
  • In the Asteraceae (aster or sunflower family), the end of the peduncle to which all of the florets of the flower head are attached. 

  • A container. 

  • A contact device installed at an outlet for the connection of an attachment plug (typically by receiving the plug's prongs) to supply portable appliances or equipment. 

  • A structure at the end of a branch of an alga containing conceptacles (reproductive organs). 

  • An organ that receives and holds a secretion. 

  • The part of the flower stalk (peduncle or pedicel) to which the floral parts are attached; a thalamus, a torus. 

torus

noun
  • The end of the peduncle or flower stalk to which the floral parts (or in the Asteraceae, the florets of a flower head) are attached. 

  • The thickening of a membrane closing a wood-cell pit (as of gymnosperm tracheids) having the secondary cell wall arched over the pit cavity. 

  • A rounded ridge of bone or muscle, especially one on the occipital bone. 

  • {{lb|en|topology|in combination|n-torus|4-torus|etc.}} The product of the specified number of circles. 

  • A topological space which is a product of two circles. 

  • A large convex molding, typically semicircular in cross section, which commonly projects at the base of a column and above the plinth. 

  • A ring-shaped object, especially a large ring-shaped chamber used in physical research. 

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