Noun
An instrument for ascertaining the specific gravity of bodies.
Source: Webster's dictionaryRelative pendulum gravimeters were superseded by the simpler LaCoste zero-length spring gravimeter, invented in 1934 by Lucien LaCoste. Source: Internet
The difference between clock pendulums and gravimeter pendulums is that to measure gravity, the pendulum's length as well as its period has to be measured. Source: Internet
The third moonwalk, the last of the Apollo program, began at 5:26 pm EST on December 13. During this excursion, the crew collected convert of lunar samples and took nine gravimeter measurements. Source: Internet
The gravimeter was used to obtain readings at the landing site in the immediate vicinity of the Lunar Module (LM), as well as various locations on the mission's traverse routes. Source: Internet
They collected convert of samples, deployed three more explosive packages and took seven gravimeter measurements. Source: Internet