Definitions for vital signs
Random House Webster's College Dictionary
essential body functions, comprising pulse rate, body temperature, and respiration.
Category: Medicine, Physiology
Origin of vital signs:
A set of measurements of a patients condition taken regularly to assess the state of bodily functions:- CSM, skin signs, lung sounds, temperature, pulse, blood pressure and respiration.
U.S. National Library of Medicine
The signs of life that may be monitored or measured, namely pulse rate, respiratory rate, body temperature, and blood pressure.