(n.) A form of barometer so constructed as to inscribe of itself upon paper a record of the variations of atmospheric pressure.

aerological instrument aneroid barometer aneroidograph barograph barometrograph canon check criterion degree feeler gauge glass graduated scale hurricane-hunter aircraft hygrometer measure model norm parameter pattern pilot balloon probe quantity radiosonde random sample reading readout recording barometer rule sample scale sound sounder standard straw vote test touchstone trial balloon type vacuometer value weather balloon weather instrument weather satellite weather vane weathercock weatherglass yardstick