rounding /ˈɹaʊndɪŋ/noun 5adjective 1forms 3 noun5 •The act of making anything round, as the lips in pronouncing some vowels. •The act by which a numerical value is rounded. •The numerical value obtained by this process. •A rounded surface; a curve.In the early Egyptian works, the relief was low, the surface flat, and but little if any attempt was made to show the roundings of the human figure, or to exhibit the inflexion of the human form. — 1860 •In bookbinding, the shaping of the folded and sewed sheets into a convex form at the back. adjective1 •Round or nearly round; becoming round; roundish. formsroundings · more rounding · most rounding