the French name for Chad
noun 1. Peter Ilyich [il-yich] /ˈɪl yɪtʃ/ (Show IPA), or Pëtr Ilich [Russian pyawtr ee-lyeech] /Russian ˈpyɔtr iˈlyitʃ/ (Show IPA), 1840–93, Russian composer. noun 1. Pyotr Ilyich (pjɔtr iljˈjitʃ). 1840–93, Russian composer. His works, which are noted for their expressive melodies, include the Sixth Symphony (the Pathétique; 1893), ballets, esp Swan Lake (1876) and The […]
noun, plural Tchambulis (especially collectively) Tchambuli. 1. a member of an indigenous people of Papua New Guinea.
[chuh-buh-shawf] /tʃə bəˈʃɔf/ noun, Mathematics. 1. a differential equation of the form (1 − x 2) d 2 y/dx 2 − x dy/dx + n 2 y = 0, where n is any nonnegative integer.
noun, Mathematics. 1. a polynomial solution of the Tchebycheff equation, of the form T n (x) = cos(n cos −1 x), where n is an integer.