Last Updated
：2025/11/19
potassium
IPA(Pronunciation)
Noun
uncountable
usually
countable
Japanese Meaning
柔らかく、蝋のような質感をもつ銀白色の反応性金属。自然界では単体では存在せず、元素（記号K、原子番号19、原子量約39.1）の一種であり、記号はラテン語の「kalium」に由来する。
（ plural ）
Quizzes for review
A soft, waxy, silvery reactive metal that is never found unbound in nature; an element (symbol K) with an atomic number of 19 and atomic weight of 39.0983. The symbol is derived from the Latin kalium.
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potassium
Potassium reacts violently with water, so it must be stored under oil.
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Potassium reacts violently with water, so it must be stored under oil.
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