English-Thai Dictionary
eudiometer
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Webster's 1828 Dictionary
EUDIOMETER
n.[Gr. serene, and Jove, air, and measure. ] An instrument for ascertaining the purity of the air, or the quantity of oxygen it contains.
Webster's 1913 Dictionary
EUDIOMETER
Eu `di *om "e *ter, n. Etym: [Gr. -meter: cf. F. ediomètre.] (Chem. )
Defn: An instrument for the volumetric measurement of gases; -- so named because frequently used to determine the purity of the air.
Note: It usually consists of a finely graduated and calibrated glass tube, open at one end, the bottom; and having near the top a pair of platinum wires fused in, to allow the passage of an electric spark, as the process involves the explosion and combustion of one of the ingredients to be determined. The operation is conducted in a through of mercury, or sometimes over water. Cf. Burette. Use's ediometer has the tube bent in the form of the letter. U.
New American Oxford Dictionary
eudiometer
eu di om e ter |ˌyo͞odēˈämitər ˌjudiˈɑmədər | ▶noun Chemistry a graduated glass tube in which mixtures of gases can be made to react by an electric spark, used to measure changes in volume of gases during chemical reactions. DERIVATIVES eu di o met ric |ˌyo͞odēəˈmetrik |adjective, eu di o met ri cal |ˌyo͞odēəˈmetrikəl |adjective, eu di om e try |-trē |noun ORIGIN late 18th cent. (denoting an instrument used to measure amounts of oxygen, thought to be greater in fine weather ): from Greek eudios ‘clear, fine ’ (weather ), from eu ‘well ’ + dios ‘heavenly. ’
Oxford Dictionary
eudiometer
eudiometer |ˌjuːdɪˈɒmɪtə | ▶noun Chemistry a graduated glass tube in which mixtures of gases can be made to react by an electric spark, used to measure changes in volume during chemical reactions. DERIVATIVES eudiometric |-dɪəˈmɛtrɪk |adjective, eudiometrical |-dɪəˈmɛtrɪk (ə )l |adjective, eudiometry noun ORIGIN late 18th cent. (denoting an instrument used to measure amounts of oxygen, thought to be greater in fine weather ): from Greek eudios ‘clear, fine ’ (weather ), from eu ‘well ’ + dios ‘heavenly ’.
Duden Dictionary
Eudiometer
Eu dio me ter Substantiv, Neutrum , das |Eudiom e ter |das Eudiometer; Genitiv: des Eudiometers, Plural: die Eudiometer griechisch-neulateinisch Glasröhre zum Abmessen von Gasen
The Wordsmith Dictionary