The meaning of Greer has more than one different etymologies. It has same or different meanings in other countries and languages. The different meanings of the name Greer are: 1  Celtic-Gaelic meaning: Watchful guardian.eep in mind that many names may have different meanings in other countries and languages, so be careful that the name that you choose doesnât mean something bad or unpleasant. Search comprehensively and find the name meaning of Greer and its name origin or of any other name in our database.
polÂ·yÂ·proÂ·tic. adj. Of or relating to an acid that can donate more than one proton to a base.
An addition polymer made from the monomer propylene, it is rugged and unusually resistant to many chemical solvents, bases and acids. In 2013, the global market for polypropylene was about 55 million metric tons.hen the methyl groups in a polypropylene chain exhibit no preferred orientation, the polymers are called atactic. Atactic polypropylene is an amorphous rubbery material. It can be produced commercially either with a special type of supported Ziegler-Natta catalyst or with some metallocene catalysts.