hydrometer
Hydrometer Hy*drom"e*ter, n. [Hydro-, 1 + -meter: cf. F. hydrom[`e]tre.] 1. (Physics) An instrument for determining the specific gravities of liquids, and thence the strength spirituous liquors, saline solutions, etc. [1913 Webster]

Note: It is usually made of glass with a graduated stem, and indicates the specific gravity of a liquid by the depth to which it sinks in it, the zero of the scale marking the depth to which it sinks in pure water. Extra weights are sometimes used to adapt the scale to liquids of different densities. [1913 Webster]

2. An instrument, variously constructed, used for measuring the velocity or discharge of water, as in rivers, from reservoirs, etc., and called by various specific names according to its construction or use, as {tachometer}, {rheometer}, {hydrometer}, {pendulum}, etc.; a current gauge.


The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • Hydrometer — Hy*drom e*ter, n. [Hydro , 1 + meter: cf. F. hydrom[ e]tre.] 1. (Physics) An instrument for determining the specific gravities of liquids, and thence the strength spirituous liquors, saline solutions, etc. [1913 Webster] Note: It is usually made… …   The Collaborative International Dictionary of English

  • Hydromēter — (gr.), 1) Werkzeug, das Volumen od. das Gewicht eines flüssigen Körpers, od. die Geschwindigkeit seiner Bewegung zu messen, so die Aräometer, Wind u. Strommesser; zu letzteren gehören die Hydrometrische Flasche, der Hydrometrische Flügel u. der… …   Pierer's Universal-Lexikon

  • Hydrométer — (griech., »Wassermesser«), Instrument zur Messung der Geschwindigkeit des fließenden Wassers, wie die Pitotsche Röhre, der Stromquadrant, der hydrometrische Flügel, das Hydrotachometer etc. (s. Geschwindigkeitsmessung). H. auch soviel wie… …   Meyers Großes Konversations-Lexikon

  • Hydrometer — Hydrometer, griech. deutsch, Instrument zur Bestimmung des Steigens u. Fallens des Wassers; Aräometer, s. d …   Herders Conversations-Lexikon

  • hydrometer — 1670s, from HYDRO (Cf. hydro ) + METER (Cf. meter) (n.3) …   Etymology dictionary

  • hydrometer — ► NOUN ▪ an instrument for measuring the density of liquids. DERIVATIVES hydrometric adjective hydrometry noun …   English terms dictionary

  • hydrometer — [hī dräm′ət ər] n. [ HYDRO + METER] an instrument for measuring the specific gravity of liquids: it is a graduated, weighted tube that sinks in a liquid up to the point determined by the density of the liquid hydrometric [hī΄drō me′trik,… …   English World dictionary

  • Hydrometer — Not to be confused with Hygrometer. Hydrometer from Practical Physics Schematic drawing of a hydrometer. The lower the densi …   Wikipedia

  • hydrometer — hydrometric /huy dreuh me trik/, hydrometrical, adj. hydrometry, n. /huy drom i teuhr/, n. an instrument for determining the specific gravity of a liquid, commonly consisting of a graduated tube weighted to float upright in the liquid whose… …   Universalium

  • hydrometer — UK [haɪˈdrɒmɪtə(r)] / US [haɪˈdrɑmɪtər] noun [countable] Word forms hydrometer : singular hydrometer plural hydrometers physics a piece of equipment used for measuring the density of liquids …   English dictionary

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