adamantoid

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noun

A crystal characterized by being bound by 48 equal triangles; a hexoctahedron.

OriginAncient Greek ἀδάμας →
Scrabble 14
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Meanings

nounadamantoid (plural adamantoids)

plural adamantoids

  1. A crystal characterized by being bound by 48 equal triangles; a hexoctahedron.

Origin

  1. Ancient Greekἀδάμας“invincible”
  2. Englishadamantoid

From Ancient Greek ἀδάμας (adámas, “invincible”) + -ειδής (-eidḗs, “form”). Equivalent to adamant + -oid.

More words from Ancient Greek

Full word history & related roots →
Cite this entry
APA

adamantoid. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/adamantoid

MLA

“adamantoid.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/adamantoid. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “adamantoid,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/adamantoid.

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