low blueberry lowb·lue·berry uncommon noun 1. low-growing deciduous shrub of northeastern North America having flowers in compact racemes and bearing sweet dark blue berries Synonymslow-bush blueberrylow blueberryVaccinium angustifoliumVaccinium pennsylvanicum Related words Broader terms blueberry WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.