The Collaborative International Dictionary
Barometrograph
Barometrograph \Bar`o*met"ro*graph\ (b[a^]r`[-o]*m[e^]t"r[-o]*gr[.a]f), n. [Gr. ba`ros weight + me`tron measure + -graph.] A form of barometer so constructed as to inscribe of itself upon paper a record of the variations of atmospheric pressure.
Wiktionary
barometrograph
n. A form of barometer capable of recording the variations of atmospheric pressure onto paper.