As used in this chapter, the following definitions shall apply:

((1)) ** Court order** The term “court order” includes a court order (as described in ).section 922(g)(8) of title 18

((2)) ** Mental health terms** The terms “adjudicated as a mental defective” and “committed to a mental institution” have the same meanings as in .section 922(g)(4) of title 18

((3)) ** Misdemeanor crime of domestic violence** The term “misdemeanor crime of domestic violence” has the meaning given the term in .section 921(a)(33) of title 18