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Search Result for "graphite": 
Wordnet 3.0

NOUN (1)

1. used as a lubricant and as a moderator in nuclear reactors;
[syn: graphite, black lead, plumbago]


The Collaborative International Dictionary of English v.0.48:

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 used for pencils (improperly called lead pencils), for crucibles, and as a lubricator, etc. Often called plumbago or black lead. [1913 Webster] Graphite battery (Elec.), a voltaic battery consisting of zinc and carbon in sulphuric acid, or other exciting liquid. [1913 Webster]
WordNet (r) 3.0 (2006):

graphite n 1: used as a lubricant and as a moderator in nuclear reactors [syn: graphite, black lead, plumbago]