Meaning of VERNIER in English

VERNIER

n.

Pronunciation: ' v ə r-n ē - ə r

Function: noun

Etymology: Pierre Vernier

Date: 1766

1 : a short scale made to slide along the divisions of a graduated instrument for indicating parts of divisions

2 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

Merriam Webster Collegiate English Dictionary.      Merriam Webster - Энциклопедический словарь английского языка.