Plumbago

//pləmˈbeɪɡoʊ// noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    A plant of the genus Plumbago; leadwort. countable, uncountable
  2. 2
    any plumbaginaceous plant of the genus Plumbago wordnet
  3. 3
    Graphite. countable, historical, uncountable
  4. 4
    used as a lubricant and as a moderator in nuclear reactors wordnet

Synonyms

All synonyms
black leadgraphitegraphiteblack leadmucilagemucus

Etymology

Borrowed from Latin plumbāgō (“type of lead ore”), from plumbum (“lead”).

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.