Standard Lemma guide

phosphonium

noun · 1 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • rhymes with -əʊniəm

1

noun

Meaning 1

the tetravalent positively-charged phosphorus cation R4P+

Definition source: English Wiktionary via Wiktextract

Topics: chemistry, natural-sciences, physical-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

Etymology tree Proto-Indo-European *bheh2- Proto-Indo-European *bhéh2os Proto-Hellenic *pháwos Ancient Greek φᾰ́ος (phắos) Ancient Greek φῶς (phôs) Proto-Indo-European *bher- Proto-Indo-European *bhéreti Proto-Hellenic *phérō Ancient Greek φέρω (phérō) Proto-Indo-European *-os Proto-Hellenic *-os Ancient Greek -ος (-os) Ancient Greek -φόρος (-phóros) Ancient Greek φωσφόρος (phōsphóros)bor. Latin phōsphorusbor. English phosphorusclip. English phosph- English -onium English phosphonium From phosph- + -onium.