strap vs trephine

strap

verb
  • To sharpen by rubbing on a strap; to strop. 

  • To beat or chastise with a strap; to whip, to lash. 

  • To fasten or bind with a strap. 

noun
  • Something made of such a strip, or of a part of one, or a combination of two or more for a particular use. 

  • A band, plate, or loop of metal for clasping and holding timbers or parts of a machine. 

  • A strip of thick leather used in flogging. 

  • A long, narrow, pliable strip of leather, cloth, or the like. 

  • A championship belt, or by extension, the title. 

  • An investment strategy involving simultaneous trade with one put and two call options on the same security at the same strike price, similar to but more bullish than a straddle. 

  • The flat part of the corolla in ligulate florets, as those of the white circle in the daisy. 

  • Synonym of strapline 

  • A gun, normally a personal firearm such as a pistol or machine pistol. 

  • A piece of leather, or strip of wood covered with a suitable material, used to hone the sharpened edge of a razor; a strop. 

  • The leaf, exclusive of its sheath, in some grasses. 

  • A strap worn on the shoulder. 

  • A piece of rope or metal passing around a block and used for fastening it to anything. 

trephine

verb
  • To perforate with a trephine. 

  • To use a trephine during surgery. 

noun
  • A surgical instrument with a cylindrical blade used to remove a circular section of tissue, f.e. bone or cornea; a trepan. 

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