orthodontics: dental specialty that using braces, retainers, and other dental devices to treat misalignment of teeth, restoring them to proper functioning. orthodontist: the oral health provider who specializes in diagnosis, prevention, interception, and treatment of malocclusions, or bad bites, of the teeth and surrounding structures.
Define metric system: a decimal system of weights and measures based on the meter and on the kilogram a decimal system of weights and measures based on the meter and on the kilogramâ¦ See the full definition
The metric system is an alternative system of measurement used in most countries, as well as in the United States. The metric system is based on joining one of a series of prefixes, including kilo-, hecto-, deka-, deci-, centi-, and milli-, with a base unit of measurement, such as meter, liter, or gram.