Drummond light
Calcium Cal"ci*um (k[a^]l"s[i^]*[u^]m), n. [NL., from L. calx, calcis, lime; cf F. calcium. See {Calx}.] (Chem.) An elementary substance; a metal which combined with oxygen forms lime. It is of a pale yellow color, tenacious, and malleable. It is a member of the alkaline earth group of elements. Atomic weight 40. Symbol Ca. [1913 Webster]

Note: Calcium is widely and abundantly disseminated, as in its compounds calcium carbonate or limestone, calcium sulphate or gypsum, calcium fluoride or fluor spar, calcium phosphate or apatite. [1913 Webster]

{Calcium light}, an intense light produced by the incandescence of a stick or ball of lime in the flame of a combination of oxygen and hydrogen gases, or of oxygen and coal gas; -- called also {Drummond light} and {lime light}. [1913 Webster +PJC]

The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • Drummond light — Drum mond light [From Thomas Drummond, a British naval officer.] A very intense light, produced by turning two streams of gas, one oxygen and the other hydrogen, or coal gas, in a state of ignition, upon a ball of lime; or a stream of oxygen gas… …   The Collaborative International Dictionary of English

  • Drummond light — torch that burns calcium oxide (lime) and gives off intense white light, 1854, named for Scottish engineer Capt. Thomas Drummond, R.E., (1797 1840), who invented it c.1825 …   Etymology dictionary

  • Drummond light. — See calcium light. [1835 45; named after Capt. T. Drummond (1797 1840), British engineer] * * * …   Universalium

  • DRUMMOND LIGHT —    an intensely brilliant and pure white light produced by the play of an oxyhydrogen flame upon a ball of lime, so called from the inventor, Captain Thomas Drummond …   The Nuttall Encyclopaedia

  • Drummond light. — See calcium light. [1835 45; named after Capt. T. Drummond (1797 1840), British engineer] …   Useful english dictionary

  • drummond light — ˈdrəmənd noun Usage: usually capitalized D Etymology: after Thomas Drummond died 1840 British engineer : limelight 1a, 1b …   Useful english dictionary

  • DRUMMOND, CAPTAIN THOMAS —    civil engineer, born in Edinburgh; inventor of the Drummond Light; was employed in the trigonometrical survey of Great Britain and Ireland; became Under Secretary for Ireland, and was held in high favour by the Irish (1797 1840) …   The Nuttall Encyclopaedia

  • Light Division — The Light Division Active 1803 – 1815 1853 – 1856 1914 – 1918 1968 – 2007 Country Great Britain Branch British Army Type Light Infantry …   Wikipedia

  • Drummond and Smith College — Infobox University name =Drummond and Smith College motto = Per Concordiam Animi Robur (Latin: Strength Through Unity ) established =1997 principal = Edwina Ridgway city =Armidale state =New South Wales country =Australia capacity = Approx 225… …   Wikipedia

  • Drummond, William — ▪ Scottish poet born Dec. 13, 1585, Hawthornden, near Edinburgh, Scot. died Dec. 4, 1649, Hawthornden  first notable poet in Scotland to write deliberately in English. He also was the first to use the canzone, a medieval Italian or Provençal… …   Universalium

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”