declination variometer
1variometer — noun Date: circa 1889 1. an instrument for measuring magnetic declination 2. an aeronautical instrument for indicating rate of climb …
2variometer — instrument for measuring magnetic declination Scientific Instruments …
3Compass — This article is about the direction finding instrument used in navigation. For other uses, see Compass (disambiguation). A simple dry magnetic pocket compass …
4Measurement — (Roget s Thesaurus) < N PARAG:Measurement >N GRP: N 1 Sgm: N 1 measurement measurement admeasurement mensuration survey valuation appraisement assessment assize Sgm: N 1 estimate estimate estimation Sgm: N 1 dead reckoning …
