"Ambulatory" is a word in LAW AND LEGAL, ENGLISH

Movable; revocable; subject to change

Accustomed to move from place to place; not stationary;
movable; as, an ambulatory court, which exercises its jurisdiction in
different places.

Pertaining to a walk.

Of or pertaining to walking; having the faculty of
walking; formed or fitted for walking; as, an ambulatory animal.

Not yet fixed legally, or settled past alteration;
alterable; as, the dispositions of a will are ambulatory until the
death of the testator.

A place to walk in, whether in the open air, as the
gallery of a cloister, or within a building.