noun
Usage: usually capitalized F
: a point in a crystalline compound (as a silver halide) at which a negative ion missing from the crystal lattice has been replaced by an electron
noun
Usage: usually capitalized F
: a point in a crystalline compound (as a silver halide) at which a negative ion missing from the crystal lattice has been replaced by an electron
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012