crow's foot

See also: crow's feet and crow's-foot

English

The crow's-foot notation indicates that an author can write several books, and a book can be written by several authors.

crow 's foot (plural crow's feet)

(usually in the plural) A small wrinkle in the corner of an eye, emblematic of aging.
- c. 1380, Geoffrey Chaucer, Troilus and Criseyde‎^[1], volume two:
  
  So longe mote ye live, and alle proude,/Til crowes feet be growe under your eye
- 1814 May 9, [Jane Austen], chapter XV, in Mansfield Park: […], volume I, London: […] [George Sidney] for T[homas] Egerton, […], →OCLC, pages 305–306:
  You must get a brown gown, and a white apron, and a mob cap, and we must make you a few wrinkles, and a little of the crowsfoot at the corner of your eyes, and you will be a very proper, little old woman.
- 2013 September 11, Kim Painter, “New wrinkle: Botox approved to treat crow's feet”, in USA Today‎^[2]:
  
  The Food and Drug Administration says it's an effective temporary treatment for crow's feet, the wrinkles that form next to aging eyes.
(sewing) A triangular embroidery stitch.
(databases) A symbol, resembling a bisected equilateral triangle, used in database diagrams to indicate plurality.
- 1999, Robert J Muller, Database Design for Smarties:
  The crow's-foot notation similarly represents relationships.
- 2007, Geoff Coffey, Susan Prosser, Filemaker Pro 9: The Missing Manual‎
  Each crow's foot in your ER diagram indicates the need for a foreign key.
A number of lines rove through a long wooden block, supporting the backbone of an awning horizontally.
A caltrop.