“employee” means an employee as defined by section 6301(2), but shall exclude any individual employed by the government of the District of Columbia;

“executive agency” means any executive agency or any administrative unit thereof;

“leave bank” means a leave bank established under section 6363;

“leave contributor” means an employee who contributes leave to an agency leave bank under section 6365;

“leave recipient” means an employee whose application under section 6367 to receive contributions of leave from a leave bank is approved; and

“medical emergency” means a medical condition of an employee or a family member of such employee that is likely to require the prolonged absence of such employee from duty and to result in a substantial loss of income to such employee because of the unavailability of paid leave (disregarding any advanced leave).