Atoms

Minute particles that are the basic building blocks of all chemical elements and thus all matter.

Atoms

The smallest parts of an element - such as hydrogen or oxygen.
Found on http://www.bbc.co.uk/weather/weatherwise/glossary/a.shtml

atoms

Composite particles of protons, neutrons and electrons. The smallest part of a substance that can take part in a chemical reaction. Click here for more information
Found on http://www.fisicx.com/quickreference/science/glossary.html

ATOMS

Air Traffic Operations Management System
Found on http://www.translationdirectory.com/glossaries/glossary287.php

atoms

Composite particles of protons, neutrons and electrons
Found on http://www.quick-facts.co.uk/science/glossary.html
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