atom
US /ˈæt̬.əm/
UK /ˈæt̬.əm/

1.
atom
the basic unit of a chemical element, consisting of a nucleus and orbiting electrons
:
•
Water is made up of hydrogen and oxygen atoms.
Air terdiri daripada atom hidrogen dan oksigen.
•
The smallest particle of an element is an atom.
Zarah terkecil bagi sesuatu unsur ialah atom.