dry rot vs mushroom

dry rot

noun
  • A fungal infection which affects plants, in particular potatoes. 

  • The crumbly, friable decayed portions of wooden members of buildings, especially at or below grade, usually caused by a fungal infection. 

  • Any progression of decay, corruption, or obsolescence. 

mushroom

noun
  • A fungus producing such fruiting bodies. 

  • A concrete column with a thickened portion at the top, used to support a slab. 

  • Any of the fleshy fruiting bodies of fungi typically produced above ground on soil or on their food sources (such as decaying wood). 

  • Something that grows very quickly or seems to appear suddenly. 

  • Champignon or Agaricus bisporus, the mushroom species most commonly used in cooking. 

  • Any of the mushroom-shaped pegs in bar billiards. 

verb
  • To form the shape of a mushroom when striking a soft target. 

  • To form the shape of a mushroom. 

  • To grow quickly to a large size. 

  • To gather mushrooms. 

adj
  • Having characteristics like those of a mushroom, for example in shape or appearance, speed of growth, or texture. 

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