Hypertension, or high blood pressure, is a condition in which blood-pressure at rest is higher than the body's needs. Because hypertension lacks overt symptoms, high blood pressure can go unnoticed for years.
2. metric-a decimal unit of measurement of the metric system (based on meters and kilograms and seconds); convert all the measurements to metric units; it is easier to work in metric. metric unit.
â¢ METRIC WEIGHT UNIT (noun). The noun METRIC WEIGHT UNIT has 1 sense: 1. a decimal unit of weight based on the gram. Familiarity information: METRIC WEIGHT UNIT used as a noun is very rare.