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n. smallest part of an element (Physics, Chemistry); something that is extremely small, minute or microscopic object

Wikipedia English The Free Encyclopedia

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An atom is the smallest constituent unit of ordinary matter that has the properties of a chemical element. Every solidliquidgas, and plasma is composed of neutral or ionized atoms. Atoms are very small; typical sizes are around 100 pm (a ten-billionth of a meter, in the short scale). However, atoms do not have well defined boundaries, and there are different ways to define their size which give different but close values.

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Atom (standard)
The name Atom applies to a pair of related Web standards. The Atom Syndication Format is an XML language used for web feeds, while the Atom Publishing Protocol (AtomPub or APP) is a simple HTTP-based protocol for creating and updating web resources.

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WordNet 2.0 Dictionary

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1. (physics and chemistry) the smallest component of an element having the chemical properties of the element
(hypernym) substance, matter
(hyponym) isotope
(part-holonym) chemical element, element
(part-meronym) elementary particle, fundamental particle, subatomic particle
(derivation) atomize, atomise
(classification) physics, physical science, natural philosophy
2. (nontechnical usage) a tiny piece of anything
(synonym) molecule, particle, corpuscle, mote, speck
(hypernym) material, stuff
(hyponym) grain
(derivation) atomize, atomise

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Atom (das)
n. something that is extremely small, minute or microscopic object; (Physics, Chemistry) atom, smallest part of an element

Babylon English-Czech

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n. atom

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