Entry 3 senses · 2 variants Webster, 1913 Blooming · Bloom·ing · IPA /ˈbluː.mɪŋ/ n. a. 01 n. The process of making blooms from the ore or from cast iron. 1. The process of making blooms from the ore or from cast iron.(Metal.) 02 a. Opening in blossoms; flowering. 1. Opening in blossoms; flowering. 2. Thriving in health, beauty, and vigor; indicating the freshness and beauties of youth or health.