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.
metric (Noun). A measurement of the distance between two points in some metric space: it is a real-valued function d(x,y) between points x and y satisfying the following properties: (1) positive definiteness: and, (2) symmetry: , and (3) triangle inequality: . metric (Verb).
kilometer - a metric unit of length equal to 1000 meters (or 0.621371 miles) kilometre, klick, km. metric linear unit - a linear unit of distance in metric terms. hectometer, hectometre, hm - a metric unit of length equal to 100 meters. mym, myriameter, myriametre - a metric unit of length equal to 10,000 meters.