: a short scale made to slide along the divisions of a graduated instrument for indicating parts of divisions
a : a small auxiliary device used with a main device to obtain fine adjustment
b : any of two or more small supplementary rocket engines or gas nozzles on a missile or a rocket vehicle for making fine adjustments in the speed or course or controlling the attitude —called also vernier engine
Origin of VERNIER
First Known Use: 1766
: having or comprising a vernier
First Known Use of VERNIER
Pierre ca 1580–1637 Fr. math.