black lead; plumbago

black lead; plumbago
Chemistry
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  • Black lead — Plumbago; graphite. It leaves a blackish mark somewhat like lead. See {Graphite}. [1913 Webster] …   The Collaborative International Dictionary of English

  • Black lead — Lead Lead (l[e^]d), n. [OE. led, leed, lead, AS. le[ a]d; akin to D. lood, MHG. l[=o]t, G. loth plummet, sounding lead, small weight, Sw. & Dan. lod. [root]123.] 1. (Chem.) One of the elements, a heavy, pliable, inelastic metal, having a bright,… …   The Collaborative International Dictionary of English

  • black lead — Graphite Graph ite, n. [Gr. gra fein to write: cf. F. graphite. See {Graphic}.] (Min.) Native carbon in hexagonal crystals, also foliated or granular massive, of black color and metallic luster, and so soft as to leave a trace on paper. It is… …   The Collaborative International Dictionary of English

  • black lead — noun used as a lubricant and as a moderator in nuclear reactors • Syn: ↑graphite, ↑plumbago • Hypernyms: ↑carbon, ↑C, ↑atomic number 6 • Hyponyms: ↑lead, ↑ …   Useful english dictionary

  • black lead — /led/, Mineral. graphite; plumbago. [1575 85] * * *        graphite (q.v.), though the term is a misnomer, since graphite does not contain any lead. * * * …   Universalium

  • black-lead — n. Plumbago, graphite …   New dictionary of synonyms

  • black lead — /ˈblæk lɛd/ (say blak led) noun graphite; plumbago …  

  • lead — I v 1. guide, conduct, marshal, usher, escort, convoy; take the lead, lead the way. See lead(def.8). 2. precede, antecede, come or go before, come first, go ahead of, go in advance; rate, rank, outrank, have precedence, have priority. 3.… …   A Note on the Style of the synonym finder

  • plumbago — (n.) graphite, 1784, from L. plumbago a type of lead ore, black lead, from plumbum lead (see PLUMB (Cf. plumb) (n.)); it renders Gk. molybdaina, which was used of yellow lead oxide and also of a type of plant …   Etymology dictionary

  • Lead — (l[e^]d), n. [OE. led, leed, lead, AS. le[ a]d; akin to D. lood, MHG. l[=o]t, G. loth plummet, sounding lead, small weight, Sw. & Dan. lod. [root]123.] 1. (Chem.) One of the elements, a heavy, pliable, inelastic metal, having a bright, bluish… …   The Collaborative International Dictionary of English

  • Lead arming — Lead Lead (l[e^]d), n. [OE. led, leed, lead, AS. le[ a]d; akin to D. lood, MHG. l[=o]t, G. loth plummet, sounding lead, small weight, Sw. & Dan. lod. [root]123.] 1. (Chem.) One of the elements, a heavy, pliable, inelastic metal, having a bright,… …   The Collaborative International Dictionary of English

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