HECKERISM
Heck"er*ism, n. (R. C. Ch.)
(a) The teaching of Isaac Thomas Hecker (1819-88), which interprets
Catholicism as promoting human aspirations after liberty and truth,
and as the religion best suited to the character and institutions of
the American people. (b) Improperly, certain views or principles
erroneously ascribed to Father Hecker in a French translation of
Elliott's Life of Hecker. They were condemned as "Americanism" by the
Pope, in a letter to Cardinal Gibbons, January 22, 1899.
Source: Webster’s Unabridged Dictionary 1913 Edition