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.
Definition. noun, plural: cartilaginous joints. A joint covered with cartilage, such as hyaline or fibrocartilage to allow movements between bones more than fibrous joint but less than the synovial joint.Supplement. Cartilaginous joints contain cartilage in between them to allow movement.artilaginous joint. Definition. noun, plural: cartilaginous joints. A joint covered with cartilage, such as hyaline or fibrocartilage to allow movements between bones more than fibrous joint but less than the synovial joint. Supplement. Cartilaginous joints contain cartilage in between them to allow movement.