Bosco transferred to the Terps from the Quakers and will play at her former home field on Wednesday.
Hannah Leubecker led the charge with five first half goals.
The Terps shot just under 57 percent in the win.
Obtaining extra possessions and limiting penalties has helped the Terps this season.
Ahearn tied her career high of three goals and led the Terps with 10 draw controls.
The Terps have shown steady improvement following a slow start to the season.
11 different Terps scored a goal in the win.
Edmondson tallied three goals and an assist in an impressive individual outing for the Terps.
The Terps lost just their sixth home game ever under coach Cathy Reese.
The Terps suffered their second loss, already matching their loss total from a season ago.