crow's foot

noun8

1. •
   [usually plural] A small wrinkle in the corner of an eye, emblematic of aging.

   • The Food and Drug Administration says it's an effective temporary treatment for crow's feet, the wrinkles that form next to aging eyes. — 2013
2. •
   A symbol, resembling a bisected equilateral triangle, used in database diagrams to indicate plurality.

   • The crow's-foot notation similarly represents relationships. — 1999
3. •
   A caltrop.
4. •
   Certain flowering plants
5. •
   especially, in genus Ranunculus
6. •
   A triangular embroidery stitch.
7. •
   A device for supporting a tripod to prevent the legs from slipping.
8. •
   A number of lines rove through a long wooden block, supporting the backbone of an awning horizontally.