English Explanatory Dictionary

upsilon

English dictionary entry

Meanings

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

Pronunciation

/ˈ(j)uːpsɪˌlɒn/ /ˈ(j)ʊpsɪˌlɒn/ /ˈʌpsɪˌlɒn/ /(j)uːpˈsaɪlən/ /(j)ʊpˈsaɪlən/ /əpˈsaɪlən/ /ˈ(j)upsɪˌlɑn/ /ˈ(j)ʊpsɪˌlɑn/ /ˈʌpsɪˌlɑn/ /ˈ(j)upsɪˌlɒn/ /(j)ɪu̯psɪˌlɒn/ En-us-upsilon.ogg

Word forms

upsilon upsilons upsila ypsilon

Etymology

From Ancient Greek ὖ ψιλόν (û psilón, “simple Υ”).

Derived words

upsilon particle
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