bluːm ˈblɒ.səm ˈblɑ.səm ˈblɒ.səm ˈblɑ.səm ˈfləʊə ˈfloʊɚ ˈfləʊə ˈfloʊɚ ˈheɪdeɪ pɹaɪ̯m produce or yield flowers The cherry tree bloomed reproductive organ of angiosperm plants especially one having showy or colorful parts a plant cultivated for its blooms or blossoms the period of greatest prosperity or productivity