Definition of knack. 1  1 : a special ready capacity that is hard to analyze or teach. 2  2a : a clever trick or stratagemb : a clever way of doing something. 3  3 archaic : an ingenious device; broadly : toy, knickknack.
Medical Definition of gingivoplasty. plural. gingivoplasties. : a surgical procedure that involves reshaping the gums for aesthetic or functional purposes.
duraplasty[dÅ«â²rÄ-plas-tÄ] Type:Term. Definitions. 1. A reconstructive operation on the open dura mater that involves a primary closure or secondary closure with another soft tissue material (muscle, fascia, allograft dura).