English dictionary
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English noun: black lead | |||
| 1. | black lead (substance) used as a lubricant and as a moderator in nuclear reactors | ||
| Synonyms | graphite, plumbago | ||
| Broader (hypernym) | atomic number 6, C, carbon | ||
| Narrower (hyponym) | lead, pencil, pencil lead | ||
Based on WordNet 3.0 copyright © Princeton University.
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Web design: Orcapia v/Per Bang. English edition: .
2024 onlineordbog.dk