plumbago

• اسم له معنيان مختلفان: معدن لين رمادي غامق يُستخدم كمادة تشحيم ومهدئ في المفاعلات النووية؛ أو أي نبات من جنس Plumbago، كثيرًا ما يُزرع لأزهاره الزينة.

A noun with two distinct meanings: a soft, dark gray mineral used as a lubricant and as a moderator in nuclear reactors; or any plant of the genus Plumbago, often grown for its ornamental flowers.

1. GraphiteC1formaltechnical

   A soft, black, crystalline form of carbon used as a lubricant and as a moderator in nuclear reactors.

   جرافيت

   • Plumbago is commonly used in pencil leads.
   • The nuclear reactor uses plumbago as a moderator.
   • Industrial lubricants often contain plumbago.

   المرادفاتgraphite

2. Leadwort plantC1formal

   Any plant of the genus Plumbago, typically with blue or white flowers, also known as leadwort.

   رصاصية

   • The garden was filled with beautiful plumbago flowers.
   • Plumbago is often grown as an ornamental plant in warm climates.
   • She planted a plumbago bush near the fence.

   المرادفاتleadwort