an instrument for measuring the intensity of a magnetic field
gaussmeter in American English
(ˈɡausˌmitər)
noun
a magnetometer for measuring the intensity of a magnetic field, calibrated in gauss
Word origin
[gauss + -meter]-meter is a combining form meaning “measure,” used in the names of instruments measuringquantity, extent, degree, etc. Other words that use the affix -meter include: manometer, nephelometer, radiometer, telemeter, thermometer