| NOUN | substance | plumbago, graphite, black lead | used as a lubricant and as a moderator in nuclear reactors |
|---|---|---|---|
| plant | plumbago | any plumbaginaceous plant of the genus Plumbago |
| Meaning | Used as a lubricant and as a moderator in nuclear reactors. | |
|---|---|---|
| Synonyms | graphite, black lead | |
| Narrower | lead, pencil lead | mixture of graphite with clay in different degrees of hardness |
| pencil | graphite (or a similar substance) used in such a way as to be a medium of communication | |
| Broader | carbon, C, atomic number 6 | An abundant nonmetallic tetravalent element occurring in three allotropic forms |
| Spanish | grafito, plombagina, plumbago | |
| Catalan | grafit, plombagina | |
| Meaning | Any plumbaginaceous plant of the genus Plumbago. | |
|---|---|---|
| Member of | genus Plumbago | shrubs and herbs and woody vines of warm regions |
| Broader | herb, herbaceous plant | A plant lacking a permanent woody stem |
| Spanish | plombagina | |
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