[f. Gr. λίτρα a pound + METER.] An instrument for ascertaining the specific gravity of liquids.
1826. R. Hare, in Amer. Jrnl. Sci. & Arts, XI. 183. On the Litrameter. This name … is given to one of the instruments which I have contrived for ascertaining specific gravities.
1858. in Simmonds, Dict. Trade. Hence in mod. Dicts.
