plemyˈrameter
[f. Gr. πλήµυρα = πλήµµυρις flood-tide + -meter.]
An instrument for measuring variations of the level of water; spec. that devised by Prof. Forel of Lausanne for measuring those of the Lake of Geneva.
| 1898 G. H. Darwin Tides ii. 22 Having studied seiches with a plemyrameter for some time, Forel used another form of apparatus. |