Starting to move around after a period of restricted movement. For example, getting up from bed rest after a spinal injury.
Found on http://www.encyclo.co.uk/local/20560
<surgery> The process of making a fixed part or stored substance mobile, as by separating a part from surrounding structures to make it accessible for an operative procedure or by causing release into the circulation for body use of a substance stored in the body. ... (18 Nov 1997) ... Found on http://www.encyclo.co.uk/local/20973