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upsilon
noun
The twentieth letter of Classical and Modern Greek; the twenty-second letter of Old and Ancient Greek.
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How it sounds
Pronunciation
/juːpˈsaɪ.lən/ /ˈjup.sɪˌlɑn/
Meaning
Definitions
noun
The twentieth letter of Classical and Modern Greek; the twenty-second letter of Old and Ancient Greek.
(particle physics) An upsilon meson, or bottomonium.
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