1.
first-aid kit; medicine chest
A container holding basic medical supplies and first-aid items for treating minor injuries and illnesses.
救急箱 is a box or case containing basic medical supplies for treating minor injuries and sudden illness at home, school, or outdoors. Most Japanese households keep one stocked with bandages, disinfectant, and common medicines.
Structure: A compound of 救急 (emergency, first aid) + 箱 (box).