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.
nail noun [ C ] (METAL) B2 a small, thin piece of metal with one pointed end and one flat end that you hit into something with a hammer, especially in order to fasten or join it to something else: a three-inch nail. I stepped on a nail sticking out of the floorboards. Hammer a nail into the wall and we'll hang the mirror from it.