\Pan-American Congress\
Any of several meetings of delegates from various American
states; esp.:
(a) One held in 1889-90 in the United States, at which all
    the independent states except Santo Domingo were
    represented and of which the practical result was the
    establishment of the Bureau of American Republics for the
    promotion of trade relations.
(b) One held in Mexico in 1901-1902.
(c) One held at Rio de Janeiro in 1906.