n.
Pronunciation: al- ' ti-m ə -t ə r, ' al-t ə - ˌ m ē -t ə r
Function: noun
Etymology: Latin altus + English -meter
Date: circa 1828
: an instrument for measuring altitude especially : an aneroid barometer designed to register changes in atmospheric pressure accompanying changes in altitude
– al · tim · e · try \ al- ' ti-m ə -tr ē \ noun