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nounused as a lubricant and as a moderator in nuclear reactors
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nounany plumbaginaceous plant of the genus Plumbagotype of:
Definition that contains plumbago
- plumbago europaea a plant of the genus Plumbago with blue flowers
- leadwort a plant of the genus Plumbago with blue flowers
- plumbago any plumbaginaceous plant of the genus Plumbago