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.
(soo'do-pok'et) A pocket that results from gingival inflammation with edema that produces an apparent abnormal depth of the gingival sulcus without apical movement of the bottom of the sulcus; a false pocket. See: gingivitis.