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.