thrum vs torus

thrum

noun
  • A threadlike part of a flower; a stamen. 

  • Small pieces of rope yarn used for making mats or mops. 

  • Any short piece of leftover thread or yarn; a tuft or tassel. 

  • A fringe made of such threads. 

  • The ends of the warp threads in a loom which remain unwoven attached to the loom when the web is cut. 

  • A spicy taste; a tang. 

  • A tuft, bundle, or fringe of any threadlike structures, as hairs on a leaf, fibers of a root. 

  • A bundle of minute blood vessels, a plexus. 

  • A mat made of canvas and tufts of yarn. 

  • A thrumming sound; a hum or vibration. 

  • A shove out of place; a small displacement or fault along a seam. 

adj
  • Made of or woven from thrum. 

verb
  • To cause a steady rhythmic vibration, usually by plucking. 

  • To insert short pieces of rope-yarn or spun yarn in. 

  • To make a monotonous drumming noise. 

  • To furnish with thrums; to insert tufts in; to fringe. 

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 thrum and torus occurred in a corpus of books? (source: Google Ngram Viewer )