| 释义 |
upsilon/ʌpˈsailən, ju:p-; ˈʊpsilɒn, ˈju:p-/n. the twentieth letter of the Greek alphabet (Υ，υ)希腊字母表中的第 20 个字母(Υ，υ) [Greek, = slender U, from psilos ‘slender’, with reference to the need to distinguish upsilon from the diphthong oi: in late Greek the two had the same pronunciation] |