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plumbago

American  
[pluhm-bey-goh] / plʌmˈbeɪ goʊ /

noun

plural

plumbagos
  1. graphite.

  2. a drawing made by an instrument with a lead point.


plumbago British  
/ plʌmˈbeɪɡəʊ /

noun

  1. any plumbaginaceous plant of the genus Plumbago, of warm regions, having clusters of blue, white, or red flowers See also leadwort

  2. another name for graphite

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of plumbago

1595–1605; < Latin plumbāgō, translation of Greek molýbdaina lead ore, derivative of mólybdos lead