white spot

noun

Definition of white spot

  1. 1 :  any of several diseases of plants marked by light-colored lesions: such as a :  a disease of alfalfa characterized by spotting and yellowing of the foliage and caused by an unbalanced water supply (as from heavy rainfall following a drought) b :  heat canker c :  a disease of turnips caused by a fungus (Cercosporella brassicae)

  2. 2 :  ich —usually used in plural

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