a glassy translucent substance that occurs in hyaline cartilage or in certain skin conditions

resembling glass in transparency or translucency

translucent cartilage that is common in joints and the respiratory passages; forms most of the fetal skeleton

an acute lung disease of the newborn (especially the premature newborn); lungs cannot expand because of a wetting agent is lacking; characterized by rapid shallow breathing and cyanosis and the formation of a glassy hyaline membrane over the alveoli