Noun. 1. tie-in-a fastener that serves to join or connect; the walls are held together with metal links placed in the wet mortar during construction. linkup, link, tie. nosepiece, bridge-the link between two lenses; rests on the nose.
Curtilage. The area, usually enclosed, encompassing the grounds and buildings immediately surrounding a home that is used in the daily activities of domestic life. A garage, barn, smokehouse, chicken house, and garden are curtilage if their locations are reasonably near to the home.
Collagen and Cartilage. Cartilage is a rather firm rubber material that covers the extremities of bones in normal joints. The primary function of cartilage is to reduce joint friction and, since cartilage can change shape when compressed, serve as a shock absorber for the bones.