definition of
restriction

[1] #1 restriction n. [limitation] a principle that limits the extent of something; "I am willing to accept certain restrictions on my movements". wn

[2] #2 restriction n. [limitation] an act of limiting or restricting (as by regulation). wn

[3] #3 restriction n. [confinement] the act of keeping something within specified bounds (by force if necessary); "the restriction of the infection to a focal area". wn