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).
Updated February 03, 2017. The metric system is a system of units of measurement established from its beginnings in 1874 by diplomatic treaty to the more modern General Conference on Weights and Measures - CGPM (ConferÃ©rence GÃ©nÃ©rale des Poids et Measures). The modern system is actually called the International System of Units or SI.