Standard Lemma guide

potassium

noun · 3 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.

  • pətăs′ēəm
  • /pəˈtæsiəm/
  • US: Recorded audio is listed in the source snapshot.
  • CMU ARPABET: P AH0 T AE1 S IY0 AH0 M Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

noun

Meaning 1

A soft, waxy, silvery reactive metal that is never found unbound in nature; an element with atomic number 19 and atomic weight of 39.0983.

Definition source: English Wiktionary via Wiktextract

Usage: uncountable, usually

Examples

  • We all need potassium, and green vegetables are a good source.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

An atom of this element.

Definition source: English Wiktionary via Wiktextract

Usage: countable, usually

Examples

  • This reaction substitutes a potassium for a sodium.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

a light soft silver-white metallic element of the alkali metal group; oxidizes rapidly in air and reacts violently with water; is abundant in nature in combined forms occurring in sea water and in carnallite and kainite and sylvite

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: K, atomic number 19

Antonyms: none provided

Broader terms: metallic element, metal

History

Etymology

Coined by British chemist Humphry Davy in 1807, from potassa (a Latinized form of potash) + -ium.

Across languages

Translations

106 source translations are retained for this English entry.

  • Afrikaans: kalium — the chemical element
  • Albanian: kalium — the chemical element
  • Arabic: بُوتَاسِيُوم (būtāsiyūm) — the chemical element
  • Armenian: կալիում (kalium) — the chemical element
  • Asturian: potasiu — the chemical element
  • Azerbaijani: kalium — the chemical element
  • Basque: potasio — the chemical element
  • Belarusian: ка́лій (kálij) — the chemical element
  • Belarusian: поташ (potaš) — the chemical element
  • Bengali: পটাশিয়াম (poṭaśiẏam) — the chemical element
  • Breton: potasiom — the chemical element
  • Breton: kaliom — the chemical element
  • Bulgarian: ка́лий (kálij) — the chemical element
  • Burmese: ပိုတက်ဆီယမ် (puitakhciyam) — the chemical element
  • Catalan: potassi — the chemical element
  • Chinese Cantonese: 鉀 /钾 (gaap3) — the chemical element
  • Chinese Mandarin: 鉀 /钾 (jiǎ) — the chemical element
  • Cornish: calyum — the chemical element
  • Czech: draslík — the chemical element
  • Danish: kalium — the chemical element
  • Dutch: kalium — the chemical element
  • Dutch: potas — the chemical element
  • Esperanto: kalio — the chemical element
  • Estonian: kaalium — the chemical element
  • Faroese: kalium — the chemical element
  • Finnish: kalium — the chemical element
  • French: potassium — the chemical element
  • West-Frisian: kalium — the chemical element
  • Friulian: potassi — the chemical element
  • Galician: potasio — the chemical element
  • Georgian: კალიუმი (ḳaliumi) — the chemical element
  • German: Kalium — the chemical element
  • Greek: κάλιο (kálio) — the chemical element
  • Hawaiian: pokakiuma — the chemical element
  • Hebrew: אַשְׁלְגָן (ashlegán) — the chemical element
  • Hindi: दहातु (dahātu) — the chemical element
  • Hindi: पोटैशियम (poṭaiśiyam) — the chemical element
  • Hindi: उखाभस्मज (ukhābhasmaj) — the chemical element
  • Hungarian: kálium — the chemical element
  • Icelandic: kalín — the chemical element
  • Icelandic: kalíum — the chemical element
  • Indonesian: kalium — the chemical element
  • Indonesian: potasium — the chemical element
  • Interlingua: potassium — the chemical element
  • Interlingua: kalium — the chemical element
  • Irish: potaisiam — the chemical element
  • Italian: potassio — the chemical element
  • Japanese: カリウム (kariumu) — the chemical element
  • Kashubian: kali — the chemical element
  • Kazakh: калий (kalii) — the chemical element
  • Khmer: ប៉ូតាស្យូម (poutaasyoum) — the chemical element
  • Korean: 칼륨 (kallyum) — the chemical element
  • Korean: 칼리 (kalli) — the chemical element
  • Korean: 포타슘 (potasyum) — the chemical element
  • Korean: 가리 (gari) — the chemical element
  • Kyrgyz: калий (kaliy) — the chemical element
  • Lao: ໂພແທສຊຽມ (phō thǣs sīam) — the chemical element
  • Latin: kalium — the chemical element
  • Latin: potassium — the chemical element
  • Latvian: kālijs — the chemical element
  • Lingala: potasu class 9a/10a — the chemical element
  • Lithuanian: kalis — the chemical element
  • Luxembourgish: Kalium — the chemical element
  • Macedonian: калиум (kalium) — the chemical element
  • Malay: kalium — the chemical element
  • Malayalam: പൊട്ടാസ്യം (poṭṭāsyaṁ) — the chemical element
  • Maltese: potassju — the chemical element
  • Manx: potashum — the chemical element
  • Māori: konurehu — the chemical element
  • Mongolian: кали (kali) — the chemical element
  • Norwegian Bokmål: kalium — the chemical element
  • Norwegian Nynorsk: kalium — the chemical element
  • Occitan: potassi — the chemical element
  • Persian: پتاسیم (potâsiyom) — the chemical element
  • Polish: potas — the chemical element
  • Portuguese: potássio — the chemical element
  • Punjabi: ਪੋਟਾਸ਼ੀਅਮ (poṭāśīama) — the chemical element
  • Romanian: potasiu — the chemical element
  • Romanian: kaliu — the chemical element
  • Russian: ка́лий (kálij) — the chemical element
  • Scottish Gaelic: potaisiam — the chemical element
  • Serbo-Croatian: калијум — the chemical element
  • Serbo-Croatian: ка̑лӣј — the chemical element
  • Serbo-Croatian: kalijum — the chemical element
  • Serbo-Croatian: kȃlīj — the chemical element
  • Slovak: draslík — the chemical element
  • Slovene: kalij — the chemical element
  • Spanish: potasio — the chemical element
  • Swahili: potasiamu — the chemical element
  • Swedish: kalium — the chemical element
  • Tagalog: potasyo — the chemical element
  • Tajik: калий (kaliy) — the chemical element
  • Tamil: வெடியம் (veṭiyam) — the chemical element
  • Tamil: பொட்டாசியம் (poṭṭāciyam) — the chemical element
  • Thai: โพแทสเซียม (poo-tɛ́ɛs-sîiam) — the chemical element
  • Turkish: potasyum — the chemical element
  • Turkmen: kaliý — the chemical element
  • Ukrainian: ка́лій (kálij) — the chemical element
  • Uyghur: كالىي (kaliy) — the chemical element
  • Uzbek: kaliy — the chemical element
  • Uzbek: калий (kaliy) — the chemical element
  • Vietnamese: kali — the chemical element
  • Volapük: kalin — the chemical element
  • Welsh: potasiwm — the chemical element
  • Yiddish: קאַליום (kalyum) — the chemical element
  • Yiddish: פּאָטאַסיום (potasyum) — the chemical element
Real reading context

potassium in complete knowledge articles