black lead 1
rzeczownikdomena: substancja
Princeton WordNet [ver.3.1]
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AngielskiDefinicja
used as a lubricant and as a moderator in nuclear reactors
Hypernym
carbon 1
rzeczownik
an abundant nonmetallic tetravalent element occurring in three allotropic forms: amorphous carbon and graphite and diamond; occurs in all organic compounds
Angielski