General English

General Science


  • verb to produce a unique number derived from the entry itself, for each entry in a database


  • electrical noise such as that caused by arcing, the contacts of a vibrator, or the brushes of a motor or generator.
  • A form of radar clutter produced by background electrical noise. It may be manifested on a display screen, for instance, as a pattern resembling grass. Also, any similar interference appearing on a CRT screen. Also called grass.
  • electrical noise in a radio receiver, such as hissing.
  • To calculate a hash total, or to produce a hash value.
  • Meaningless, unwanted, incorrect, corrupted, or otherwise useless data. Such data can be entered by a user, or may be produced by a computer. Also called garbage (1).


Information & Library Science

  • noun a symbol (#) used to indicate the word ‘number’ in addresses
  • noun a symbol used on telephones for a variety of functions


  • noun a printed sign (#) which indicates one of a series of numbers