n. (Physics) A contraction of amperometer or ampèremeter. [ 1913 Webster ]
n. a sensitive ammeter for detecting small currents, graduated in milliamperes. [ WordNet 1.5 ]
n. [ See Photogram; -meter. ] A phototheodolite, or a camera designed for use in photogrammetry. --
n. A wattmeter. [ Webster 1913 Suppl. ]