GMAT Vocabulary Flash Cards @ englishpdf.com and englishteststore.com File 512 poise (n) Equilibrium polar (adj) Pertaining to the poles of a sphere, especially of the earth polemic (adj) controversial polemicist (n) a person skilled in argument polemics (n) The art of controversy or disputation pollen (n) The fine dust-like grains or powder formed within the anther of a flowering plant pollute (v) To contaminate polyarchy (n) Government by several or many persons of what-ever class