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Black lead   /blæk lɛd/   Listen
Black lead

noun
1.
Used as a lubricant and as a moderator in nuclear reactors.  Synonyms: graphite, plumbago.






WordNet 3.0 © 2010 Princeton University








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"Black lead" Quotes from Famous Books



... file to depths required, which must be so as to allow a playing card to slip comfortably under the E string when taut, a little more space for the other three being necessary, especially the G. Rub a black lead pencil through the cuts, and work them very smooth with a thin, round piece of steel, which makes all the strings much easier to slide afterwards and ...
— Violin Making - 'The Strad' Library, No. IX. • Walter H. Mayson

... in Surbiton yesterday," said the frivolous voice, "and an errand-boy had done his worst with it with a very black lead pencil." ...
— Punch, or the London Charivari, Vol. 159, July 28th, 1920 • Various

... to the London Chemical News (1861) a paper on the employment of carbon as a means of permanent record. The imperishable nature of carbon, in its various forms of lamp-black, ivory-black, wood-charcoal, and graphite or black lead, holds out much greater promise of being usefully employed in the manufacture of a permanent writing material; since, for this substance, in its elementary condition and at ordinary temperatures, there exists ...
— Forty Centuries of Ink • David N. Carvalho

... genuine signature holding the paper on which the forgery is to be produced; tracing the outline of the signature by means of a pencil, and then with ink to write over the pencil copy. But as the method necessitates the use of an india rubber to remove the surplus black lead where not covered by the ink, evidences of the use of the rubber will be found to occur, and traces of the black lead can be found by the microscope. While the appearances and conditions are common to traced signatures, there are in addition to their presence generally found ...
— Disputed Handwriting • Jerome B. Lavay

... Mickle, the translator of The Lusiad[539], and I went to visit him at this place a few days afterwards. He was not at home; but having a curiosity to see his apartment, we went in and found curious scraps of descriptions of animals, scrawled upon the wall with a black lead pencil[540]. ...
— Life Of Johnson, Vol. 2 • Boswell, Edited by Birkbeck Hill



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