Definitions for "Permissible"
(As applied to any device, equipment or appliance)- such device, equipment or appliance has the formal approval of the United States Bureau of Mines, American Standards Association, or National Board of Fire Underwriters.
Explosives approved by the U. S. Bureau of Mines for use in gassy underground mines. Determining factors are the volume, temperature, and duration of flames produced during detonation.
that may be accepted or conceded; "a kind of speculation that was permissible in cosmology but inadmissible in medicine"
That may be permitted; allowable; admissible.
that may be permitted especially as according to rule; "permissible behavior in school"; "a permissible tax deduction"
Permitted or allowed.