1. 
[syn: low-bush blueberry, low blueberry, Vaccinium angustifolium, Vaccinium pennsylvanicum]
The Collaborative International Dictionary of English v.0.48:
Bluets \Blu"ets\, n. [F. bluet, bleuet, dim. of bleu blue. See
   Blue, a.] (Bot.)
   A name given to several different species of plants having
   blue flowers, as the Houstonia c[oe]rulea, the Centaurea
   cyanus or bluebottle, and the Vaccinium angustifolium.
   [1913 Webster]
WordNet (r) 3.0 (2006):
Vaccinium angustifolium
    n 1: low-growing deciduous shrub of northeastern North America
         having flowers in compact racemes and bearing sweet dark
         blue berries [syn: low-bush blueberry, low blueberry,
         Vaccinium angustifolium, Vaccinium pennsylvanicum]