phosphinous

P3H4O1S1P3H4I1N1O1U1S1

adjective

Of or pertaining to phosphinous acid or its derivatives.

OriginEnglish phosphine ← Latin phōsphorus ← Ancient Greek φωσφόρος (phōsphóros) →
Scrabble 21
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Meanings

adjectivephosphinous (not comparable)
  1. not comparableOf or pertaining to phosphinous acid or its derivatives.

Origin

  1. Proto-Indo-European*bʰeh₂-
  2. Proto-Indo-European*bʰéh₂os
  3. Proto-Hellenic*pʰáwos
  4. Ancient Greekφᾰ́ος (phắos)
  5. Ancient Greekφῶς (phôs)
  6. Ancient Greekφωσφόρος (phōsphóros)
  7. Latinphōsphorus
  8. Englishphosphorusclip.
  9. Englishphosph-
  10. Englishphosphine
  11. Englishphosphinous

From phosphine + -ous.

Full word history & related roots →
Cite this entry
APA

phosphinous. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/phosphinous

MLA

“phosphinous.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/phosphinous. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “phosphinous,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/phosphinous.

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