permanent dentition n.
See secondary dentition.
noun, Electronics. 1. a radar signal reflected to a radar station on the ground by a building or other fixed object.
- Permanent hardness
noun 1. (chem) hardness of water that cannot be removed by boiling as it results mainly from the presence of calcium and magnesium chlorides and sulphates
- Permanent health insurance
noun 1. a form of insurance that provides up to 75 per cent of a person’s salary, until retirement, in case of prolonged illness or disability
noun 1. . noun, Ophthalmology. 1. a plastic lens implanted surgically to replace the eye’s natural crystalline lens, usually because the natural lens has developed a cataract.