אטום

Internationalism. Through European languages, from Latin atomus (“smallest particle”), from Ancient Greek ἄτομος (átomos, “indivisible”), from ἀ- (a-, “not”) +‎ τέμνω (témnō, “I cut”).

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אָטוֹם • (atom) m

1. (physics) an atom

• אָטוֹמִי (atomí)

From the root א־ט־ם (ʾ-t-m). Compare with אָטַם (ʾatám, “to seal”).

אָטוּם • (atúm) (feminine אֲטוּמָה, masculine plural אֲטוּמִים, feminine plural אֲטוּמוֹת)

1. closed
   • Tanach, Ezekiel 40:16, with translation of the American Standard Version:

     וְחַלֹּנוֹת אֲטֻמוֹת אֶל הַתָּאִים

     And there were closed windows to the lodges