[1] : The Collaborative International Dictionary of English v.0.48

manchu \manchu"\, a. written also manchoo, mantchoo, etc.
   of or pertaining to manchuria or its inhabitants. -- n. a
   native or inhabitant of manchuria; also, the language spoken
   by the manchus.
   1913 webster

[2] : WordNet (r) 2.0

manchu
     n 1: a member of the manchu speaking people of mongolian race of
          manchuria; related to the tungus; conquered china in the
          17th century
     2: the last imperial dynasty of china from 1644 to 1912 which
        was overthrown by revolutionaries; during the qing dynasty
        china was ruled by the manchu syn: qing, qing dynasty,
         ch'ing, ch'ing dynasty, manchu dynasty
     3: the tungusic language spoken by the manchu people
see also:
qing qing dynasty ch'ing ch'ing dynasty manchu dynasty 

Manchu >> M Words
Manchu, definition of term: Manchu
manchu_pag1.html