1.NounThe small section of a stringed instrument's bow near the heel having grippy material such as goatskin leather or snakeskin wrapped tightly around the bow stick between the lapping and the frog, so as to facilitate it being held and to protect the stick.
"I need a re-hair and a new bow grip but I can't afford either."
2.NounThe refined and precise manner of holding the bow of a bowed string instrument.
"Improving your bow grip is one of the most challenging aspects of learning to play the violin."