upsilon

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Pronunciation

• (British) IPA: /juːpˈsaɪ.lən/, /ˈʌp.sɪˌlɒn/
• (America) IPA: /ˈjup.sɪˌlɑn/, /ˈʌp.sɪˌlɑn/, /ˈup.sɪˌlɑn/

Noun

upsilon (plural upsilons)

1. The twentieth letter of Classical and Modern Greek; the twenty-second letter of Old and Ancient Greek.
2. (particle physics) An upsilon meson, or bottomonium.

Synonyms

• (uncommon) ypsilon

Translations

• French: upsilon
• German: Ypsilon
• Italian: ipsilon
• Portuguese: ípsilon, hipsilo, ipsilone, ipsilão
• Russian: и́псилон
• Spanish: ípsilon

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