upsilon

N อักษร ตัว ที่  20 ของ ภาษา กรีก 

UPSILON

UPSILON Up "si *lon, n. [Gr. 'y ^ psilo `n bare, mere, simple y.]

upsilon

up si lon |ˈəpsəˌlän, ˈ (y )o͞op -ˈ (j )ʊpsəˌlɑn | ▶noun the twentieth letter of the Greek alphabet ( Υ, υ ), transliterated in the traditional Latin style as ‘y ’ (as in cycle ) or in the modern style as ‘u ’ (as in the etymologies of this dictionary ). • (Upsilon ) [ followed by Latin genitive ] Astronomy the twentieth star in a constellation: Upsilon Scorpii. • (also upsilon particle ) Physics a meson thought to contain a b quark bound to its antiparticle, produced in particle accelerators. ORIGIN mid 17th cent.: Greek, literally ‘plain or simple U, ’ from psilos ‘plain, ’ referring to the need to distinguish upsilon from the diphthong oi: in late Greek the two had (and in modern Greek still have ) the same pronunciation.

upsilon

upsilon |ʌpˈsʌɪlən, juːp -, ˈʊpsɪlɒn, ˈjuːp -| ▶noun the twentieth letter of the Greek alphabet ( Υ, υ ), transliterated as ‘u ’ or (chiefly in English words derived through Latin ) as ‘y ’. • ( Upsilon ) [ followed by Latin genitive ] Astronomy the twentieth star in a constellation: Upsilon Scorpii. • (also upsilon particle ) Physics a meson thought to contain a b quark bound to its antiparticle, produced in particle accelerators. ORIGIN Greek, literally ‘slender U ’, from psilos ‘slender ’, referring to the need to distinguish upsilon from the diphthong oi: in late Greek the two had the same pronunciation.

upsilon

upsilon n. m. inv. nom masculin invariable Lettre grecque. Prononciation Le n se prononce, [ypsilɔn ]; le nom rime avec donne

upsilon

up si lon /júːpsəlɑ̀n |juːpsáɪlən /名詞 U C イプシロン 〘ギリシャ語アルファベットの第20字; γ, υ; ローマ字のU, uまたはY, yに当たる 〙.