{1}. ##LOC[OK]## ##LOC[Cancel]##. Air OptixÂ® Night & DayÂ® Aqua contact lenses, manufactured by AlconÂ® in this 6 pack format, are safe and FDA-approved for wear 24 hours a day for up to 30 days.
1 muster (military), a process or event for the accounting for members in a military unit. 2  a mustering, in military terminology, is a specialised formation, similar to an administrative corps.  Bill Muster (1926-1989), photographer, publisher, and marketing executive in Los Angeles.
pass muster. to be acceptable or satisfactory The tortillas and tacos we offered for lunch today didn't pass muster with the students. Etymology: based on the military use of the phrase pass muster (to gather soldiers in a group to show officers they are acceptably dressed and equipped) See also: muster, pass.