Capillaries (/ËkÃ¦páµ»lÉriz/ in US; /kÉËpÉªlÉriz/ in UK) are the smallest of a body's blood vessels (and lymph vessels) that make up the microcirculation. Their endothelial linings are only one cell layer thick.
The definition of a phonograph is a record player. A player introduced in 1877 to reproduce sounds on which you can play records and listen to the sound through an attached speaker is an example of a phonograph. YourDictionary definition and usage example.
It's Not What You Think By Russ Warner The most well known contender, the polygraph, is an instrument that measures various physiological signals from sensors attached to a person undergoing questioning.