1. The hip bones or pelvic bones of an animal, especially a cow or other livestock, that protrude slightly and resemble pins.
Usage: Usually used in plural form.; Common in butchery and livestock contexts.

Examples

• The butcher pointed out the pinbones on the side of beef.
• You can feel the pinbones on a lean cow by running your hand along its hip.
• The pinbones are a useful landmark when butchering livestock.
• Cattle with prominent pinbones are often considered to be in good condition.