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atom

nomcourant dans les dialogues

  • États-Unis/[ˈæɾm̩]/
  • États-Unis/[ˈæɾəm]/
  • //ˈætəm//

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.

nom

  1. 1

    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.

  2. 2

    A hypothetical particle posited by Greek philosophers as an ultimate and indivisible component of matter.

  3. 3

    The smallest, indivisible constituent part or unit of something.

    Towards the following morning, the thermometer fell to 5°; and at daylight, there was not an atom of water to be seen in any direction.

    But at this critical moment the pirate astern sent a mischievous shot and knocked one of the men to atoms at the helm.

  4. 4

    In logical atomism, a fundamental fact that cannot be further broken down.

  5. 5

    historiqueThe smallest medieval unit of time, equal to fifteen ninety-fourths of a second.

  6. 6

    A mote of dust in a sunbeam.

  7. 7

    A very small amount; a whit.

    "Doctor, tell me one word more," said Theodore, quivering with suppressed emotion. "How do you think it will end?" / "I have hardly the faintest atom of hope," answered this honest, earnest man.

    We are born, we are given just so much food as will keep the breath in our bodies, and those of us who are capable of it are forced to work to the last atom of our strength; and the very instant that our usefulness has come to an end we are slaughtered with hideous cruelty.

  8. 8

    An individual number or symbol, as opposed to a list; a scalar value.

  9. 9

    An integer representing a particular string.

  10. 10

    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").

    In a Venn diagram, an atom is depicted as an area circumscribed by lines but not cut by any line.

  11. 11

    An element of a set that is not itself a set; an urelement.

  12. 12

    An age group division in hockey for nine- to eleven-year-olds.

Étymologie

From Middle English attome, from Middle French athome, from Latin atomus (“smallest particle”), from Ancient Greek ἄτομος (átomos, “indivisible”), from ἀ- (a-, “not”) + τέμνω (témnō, “to cut”, o-grade in τομ-) + -ος (-os). Atoms are so named because they were historically thought up as to be the smallest unit of matter, and thus indivisible. Doublet of atomus.

Formes

pluriel
atoms
Les pages voisinesL'ordre alphabétique suit les règles de la langue, pas la valeur des octets : un accent ne départage que deux mots par ailleurs identiques, et l'espagnol range le Ñ comme une lettre à part entière.

Contenu lexical issu du Wiktionary, sous licence CC BY-SA 4.0 · Entrée d'origine · Version des données 2026-08-23

Rang parmi les mots du corpus OpenSubtitles 2018 — des sous-titres de films et de séries, donc de la langue parlée et non écrite (CC BY-SA 3.0).