̷ ̷ˌ ̷ ̷ ̷ ̷ˈräməd.ə(r) noun
( -s )
Etymology: International Scientific Vocabulary acceler ation + -o- + -meter; originally formed as French accéléromètre
1. : an instrument for measuring acceleration (as of a moving vehicle) or for detecting and measuring mechanical vibrations (as of machinery)
2. : an apparatus for measuring the gas pressure at any particular point in a gun