	Site Map \| FAQ in Daily Almanac for Feb 12, 2012
Skip Navigation Home Black History Month Atlas Encyclopedia Dictionary Thesaurus Features Quizzes Timelines Countries

| Share

Thesaurus

Synonyms for pion

1. pion, pi-meson, meson, mesotron: usage: a meson involved in holding the nucleus together; produced as the result of high-energy particle collision

See also: pion (Dictionary)