noun, (used with a singular verb)
Electricity. the standard unit of electrical conductance in the International System of Units (SI), equal to the reciprocal of the ohm and replacing the equivalent MKS unit (mho)
(Ernst) Werner von
[ernst ver-nuh r fuh n] /ˈɛrnst ˈvɛr nər fən/ (Show IPA), 1816–92, German inventor and electrical engineer.
his brother, Sir William (Karl Wilhelm Siemens) 1823–83, English inventor, born in Germany.
noun (pl) siemens
the derived SI unit of electrical conductance equal to 1 reciprocal ohm S Formerly called mho
Ernst Werner von (ɛrnst ˈvɛrnər fɔn). 1816–92, German engineer, inventor, and pioneer in telegraphy. Among his inventions are the self-excited dynamo and an electrolytic refining process
his brother, Sir William, original name Karl Wilhelm Siemens. 1823–83, British engineer, born in Germany, who invented the open-hearth process for making steel
siemens sie·mens (sē’mənz)
n. pl. siemens
A unit of electrical conductance in the International System of Units, equal to one ampere per volt.
A German semiconductor and electronics manufacturer.
noun 1. a city in NW Cambodia, near Angkor.
noun 1. a city in Tuscany, in central Italy, S of Florence: cathedral. noun 1. a walled city in central Italy, in Tuscany: founded by the Etruscans; important artistic centre (13th–14th centuries); university (13th century). Pop: 52 625 (2001)
adjective 1. of or relating to Siena or its people. 2. pertaining to or designating the style of painting developed in Siena during the late 13th and 14th centuries, characterized by a use of Byzantine forms and iconography modified by an increased three-dimensional quality, decorative linear rhythms, and harmonious, although sometimes ornamental, color. noun, plural […]
noun 1. Henryk [hen-rik] /ˈhɛn rɪk/ (Show IPA), 1846–1916, Polish novelist: Nobel prize 1905. noun 1. Henryk (ˈxɛnrik). 1846–1916, Polish novelist. His best-known works are Quo Vadis? (1896), set in Nero’s Rome, and the war trilogy With Fire and Sword (1884), The Deluge (1886), and Pan Michael (1888), set in 17th-century Poland: Nobel prize for […]
noun 1. a ferruginous earth used as a yellowish-brown pigment (raw sienna) or, after roasting in a furnace, as a reddish-brown pigment (burnt sienna) 2. the color of such a pigment. noun 1. a natural earth containing ferric oxide used as a yellowish-brown pigment when untreated (raw sienna) or a reddish-brown pigment when roasted (burnt […]