May 11, 2012 at 11:06 pm. How long a multi-dose vial eye drop can be used, apart from the temparature of preservation, has to do with the nature of the used preservative. Some preservatives may not keep for more than two weeks e.g. Benzakonium chloride while some can preserve up to one month especially the phenolics.
Definition of 'nail bar'. nail bar. noun. a type of beauty salon specializing in manicure and the decoration of, esp women's, fingernails. Example sentences containing 'nail bar'. But the action doesn't take place at the hair salons and nail bars.
Definition of bar for Students. 1  1 : a usually slender rigid piece (as of wood or metal) that has a specific use (as for a lever or barrier) 2  2 : a rectangular solid piece or block of something a bar of soap candy bar. 3  3 : a counter on which alcoholic drinks are served.  4 : a place of business for the sale of alcoholic drinks.