An infectious disease of humans and animals caused by a species of mycobacterium, usually Mycobacterium tuberculosis, mainly infecting the lungs where it causes tubercles characterized by the expectoration of mucus and sputum, fever, weight loss, and chest pain, and transmitted through inhalation or ingestion of bacteria.
Tuberculosis, especially of the lungs.
The white gold-aluminium intermetallic compound Au₅Al₂, which can be formed when gold and aluminium are heated in direct contact (for instance, at an electrical junction between gold and aluminium components).
The problems caused by the formation of this compound, including an increase in electrical resistance and formation of voids at the gold-aluminium junction, potentially culminating in total failure of the junction.