noun
( -s )
Etymology: from gerund of cup (II)
1. : a technique formerly employed for drawing blood to the surface of the body for producing counterirritation or for bloodletting by application of a glass vessel from which air had been evacuated by heat, forming a partial vacuum
2. : vibration of a band saw causing it to cut lumber of uneven thickness
3. : a concave depression in a body organ ; also : the formation of such a depression