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Last Updated：2025/11/19
Dictionary quizzes to help you remember vocabulary
Dictionary quizzes to help you remember vocabulary

(chemistry, physics) The smallest possible amount of matter which still retains its identity as a chemical element, now known to consist of a nucleus surrounded by electrons.

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atom

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Source Word

atom

IPA(Pronunciation)
/ˈætəm/
Noun
of science historical Canada attributive usually
(chemistry, physics) The smallest possible amount of matter which still retains its identity as a chemical element, now known to consist of a nucleus surrounded by electrons.
Japanese Meaning
化学元素としての基本単位で、物質が持つ最小の構造。原子核とその周りを回る電子からなる。
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Google Translation / DeepL Translation

化学反応を理解するには、まず原子が電子を通して他の原子とどのように相互作用するかを把握する必要がある。

Details
Sense（1）
(chemistry, physics) The smallest possible amount of matter which still retains its identity as a chemical element, now known to consist of a nucleus surrounded by electrons.
Google Translation / DeepL Translation
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Sense（2）
(history of science) A hypothetical particle posited by Greek philosophers as an ultimate and indivisible component of matter.
Sense（3）
(now generally regarded figuratively) The smallest, indivisible constituent part or unit of something.
Google Translation / DeepL Translation
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Sense（4）
(philosophy) In logical atomism, a fundamental fact that cannot be further broken down.
Sense（5）
(historical) The smallest medieval unit of time, equal to fifteen ninety-fourths of a second.
Sense（6）
A mote of dust in a sunbeam.
Sense（7）
A very small amount; a whit.
Google Translation / DeepL Translation
Details
Sense（8）
(computing, programming, Lisp) An individual number or symbol, as opposed to a list; a scalar value.
Sense（9）
(mathematics) A non-zero member of a partially ordered set that has only zero below it (assuming that the poset has a least element, its "zero").
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Sense（10）
(mathematics, set theory) An element of a set that is not itself a set; an urelement.
Sense（11）
(Canada, usually attributive) An age group division in hockey for nine- to eleven-year-olds.

atoms
（ plural ）

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