vernier

1 of 2

noun

ver·​ni·​er ˈvər-nē-ər How to pronounce vernier (audio)
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

vernier

2 of 2

adjective

: having or comprising a vernier

Examples of vernier in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Noun
The engine design features a large central engine surrounded by four vernier thrusters, which swivel round a point to precisely correct the rocket's attitude. Euan McKirdy, CNN, 16 May 2017
Adjective
The issue is that vernier thrusters on the Soyuz boosters and in the de-orbit engines of the Soyuz-MS spacecraft use a special grade of highly refined hydrogen peroxide. Eric Berger, Ars Technica, 17 Dec. 2021

Word History

Etymology

Noun

after Pierre vernier, who described such a scale in 1631

First Known Use

Noun

1766, in the meaning defined at sense 1

Adjective

1788, in the meaning defined above

Time Traveler
The first known use of vernier was in 1766

Dictionary Entries Near vernier

Cite this Entry

“Vernier.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/vernier. Accessed 21 Dec. 2024.

Kids Definition

vernier

noun
ver·​ni·​er
ˈvər-nē-ər
: a short scale made to slide along the divisions of an instrument marked for measuring or indicating parts of divisions

Biographical Definition

Vernier

biographical name

Ver·​nier vern-ˈyā How to pronounce Vernier (audio)
ˈvər-nē-ər
Pierre circa 1580–1637 French mathematician
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