1(of a country or its government) prepare and organize (troops) for active service:the government mobilized regular forces, reservists, and militia
organize and encourage (a group of people) to take collective action in pursuit of a particular objective:it would be hard for worker representatives to mobilize the workforce against the employers
bring (resources) into use for a particular purpose:at sea we will mobilize any amount of resources to undertake a rescue
2make (something) movable or capable of movement:the physiotherapist might mobilize the patient’s shoulder girdle
make (a substance) able to be transported by or as a liquid:acid rain mobilizes the aluminium in forest soils