bonnet vs reticulum

bonnet

noun
  • The second stomach of a ruminant. 

  • A metallic canopy, or projection, over an opening, as a fireplace, or a cowl or hood to increase the draught of a chimney, etc. 

  • A ducat, an old Scottish coin worth 40 shillings. 

  • A roofing over the cage of a mine, to protect its occupants from objects falling down the shaft. 

  • A traditional Scottish woollen brimless cap; a bunnet. 

  • A small defence work at a salient angle; or a part of a parapet elevated to screen the other part from enfilade fire. 

  • A frame of wire netting over a locomotive chimney, to prevent escape of sparks. 

  • In pumps, a metal covering for the openings in the valve chambers. 

  • A mushroom of the genus Mycena. 

  • A type of hat, once worn by women or children, held in place by ribbons tied under the chin. 

  • The polishing head of a power buffer, often made of wool. 

  • The hinged cover over the engine of a motor car; a hood. 

  • A length of canvas attached to a fore-and-aft sail to increase the pulling power. 

verb
  • To put a bonnet on. 

reticulum

noun
  • The second compartment of the stomach of a cow or other ruminant. 

  • A pattern of interconnected objects. 

  • A network. For example, the endoplasmic reticulum forms a network of cellular components that functions as a transportation system within the cell. 

  • The tripe made from the second compartment of the stomach of a cow (or other ruminant). 

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