{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.
Full Definition of MUSTER. transitive verb. 1. a: to cause to gather: convene c: to call the roll of. 2. a: to bring together: collect b: to call forth: rouse. 3. : to amount to: comprise. intransitive verb. : to come together: congregate.ull Definition of MUSTER. transitive verb. 1. a: to cause to gather: convene c: to call the roll of. 2. a: to bring together: collect b: to call forth: rouse. 3. : to amount to: comprise. intransitive verb. : to come together: congregate.