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Definition of pion

Do you know the meaning of pion?

Any of three semistable mesons, having positive, negative or neutral charge, composed of up and down quarks/antiquarks. <!-- either π⁰, a neutral form with a mass 264 times that of an electron, or π⁺ or π^—, a charged form with a mass 273 times that of an electron.

Word in 4 letters.

This definition of the word pion is from the Wiktionary, where you can also find the etimology, other senses, synonyms, antonyms and examples.

Anagrams of pion:

The word pion has 2 anagrams.

Pion backwards:

The word pion spelled backward is noip which is not a word.

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Words and their definitions are from the free English dictionary Wiktionary published under the free licence Creative Commons attribution share-alike.

Please note: the Wiktionary contains many more words - in particular proper nouns and inflected forms: plurals of nouns and past tense of verbs - than other English language dictionaries such as the Official Scrabble Players Dictionary (OSPD) from Merriam-Webster, the Official Tournament and Club Word List (OTCWL / OWL / TWL) from the National Scrabble Association, and the Collins Scrabble Words used in the UK (about 180,000 words each). LotsOfWords knows 480,000 words.

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