Define pumice. pumice synonyms, pumice pronunciation, pumice translation, English dictionary definition of pumice. n. A light, porous, glassy lava, used in solid form as an abrasive and in powdered form as a polish and an abrasive. tr.v. pumÂ·iced , pumÂ·icÂ·ing , pumÂ·icÂ·es...
Articular cartilage is a white, smooth tissue which covers the ends of bones in joints. It enables bones of a joint to easily glide over one another with very little friction. This establishes easy movement.Many areas of the body can contain this kind of cartilage.rticular cartilage is a white, smooth tissue which covers the ends of bones in joints. It enables bones of a joint to easily glide over one another with very little friction. This establishes easy movement.
Most of the cartilage that develops in prenatal life is eventually replaced by bone. However, there are two places where cartilage is found in the adult: Extraskeletal cartilage. For example, the cartilaginous rings in the trachea and the costal cartilage connecting ribs to the sternum. Articular cartilage. This type of cartilage is found in articulating joints, where it provides a smooth, gliding surface at the ends of articulating bones.