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.
Most commercial polypropylene is isotactic and has an intermediate level of crystallinity between that of low-density polyethylene (LDPE) and high-density polyethylene (HDPE). Polypropylene is normally tough and flexible, especially when copolymerized with ethylene.n 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.