/fee'euhn ket"oh, -chet"oh/ , n. , pl. fianchetti /-ket"ee, -chet"ee/ , v. Chess.
n.
1. the development of a bishop, in an opening move, by advancing one or two pawns so as to permit movement along the bishop's diagonal.
v.i. , v.t.
2. to set up or develop as a fianchetto.
[ 1840-50; ]