Adjacent Words

Eudiometer definitions

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Webster's 1828 Dictionary

EUDIOM'ETER, n. [Gr. serene, and Jove, air, and measure.]
An instrument for ascertaining the purity of the air, or the quantity of oxygen it contains.

WordNet (r) 3.0 (2005)

n
1: measuring instrument consisting of a graduated glass tube for measuring volume changes in chemical reactions between gases

Merriam Webster's

noun Etymology: modification of Italian eudiometro, from Greek eudia fair weather (from eu- + -dia weather—akin to Latin dies day) + Italian -metro -meter, from Greek metron measure Date: 1777 an instrument for the volumetric measurement and analysis of gases • eudiometric adjective • eudiometrically adverb

Oxford Reference Dictionary

n. Chem. a graduated glass tube in which gases may be chemically combined by an electric spark, used to measure changes in volume of gases during chemical reactions. Derivatives: eudiometric adj. eudiometrical adj. eudiometry n. Etymology: Gk eudios clear (weather): orig. used to measure the amount of oxygen, thought to be greater in clear air

Webster's 1913 Dictionary

Eudiometer Eu`di*om"e*ter, n. [Gr. ? fair, clear weather, fr. ? fine, clear ( said of the air or weather) + -meter: cf. F. ediom[`e]tre.] (Chem.) 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 trough of mercury, or sometimes over water. Cf. Burette. Ure's eudiometer has the tube bent in the form of the letter. U.