plastiglomerate

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noun

A type of rock with plastic inclusions

“Plastiglomerates are a marker for Anthropocene rocks.”

Scrabble 20

Meanings

nounplastiglomerate (countable and uncountable, plural plastiglomerates)

plural plastiglomerates

  1. countableuncountablegeographyA type of rock with plastic inclusions

    Plastiglomerates are a marker for Anthropocene rocks.

    1 more example

    Santos and her team ran chemical tests to find out what kind of plastics are in the rocks called "plastiglomerates" because they are made of a mixture of sedimentary granules and other debris held together by plastic.

    [2023 March 16, Sergio Queiroz, “Brazilian researchers find 'terrifying' plastic rocks on remote island”, in Reuters

Origin

  1. Proto-Hellenic*plátʰyō
  2. Proto-Hellenic*plát͏̌t͏̌ō?
  3. Ancient Greekπλάσσω (plássō)
  4. Ancient Greekπλᾰστῐκός (plăstĭkós)
  5. Latinplasticus
  6. Englishplastic
  7. Englishconglomerate
  8. Englishplastiglomerate

Blend of plastic + conglomerate. Coined by Patricia Corcoran and Charles Moore, who discovered the mineral formation containing plastics (synthetic polymer material).

Full word history & related roots →

Translations

French plastiglomérat
  • plastiglomérattype of rock
Portuguese plastiglomerado
  • plastiglomeradotype of rock
Russian пластигломерат
  • пластигломерат (plastiglomerat)type of rock
Spanish plastiglomerado
  • plastiglomeradotype of rock
Cite this entry
APA

plastiglomerate. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/plastiglomerate

MLA

“plastiglomerate.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/plastiglomerate. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “plastiglomerate,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/plastiglomerate.

Source: plastiglomerate on Wiktionary, CC BY-SA 4.0.