• Webster's Revised Unabridged Dictionary
    • Uredo (Med) Nettle rash. See Urticaria.
    • Uredo (Bot) One of the stages in the life history of certain rusts (Uredinales), regarded at one time as a distinct genus. It is a summer stage preceding the teleutospore, or winter stage. See Uredinales, in the Supplement.
    • ***
Century Dictionary and Cyclopedia
    • n uredo A form-genus or stage in the development of fungi of the order Uredineæ. It is the stage next preceding the final or Puccinia stage, until recently considered a distinct genus, and many forms whose complete life-history is unknown are for convenience still retained under this name. Compare cuts under Puccinia and spermogonium.
    • n uredo [lowercase] A receptacle or hymenium in which uredospores are produced.
    • ***
Chambers's Twentieth Century Dictionary
    • n Uredo ū-rē′dō a form-genus or stage of fungi of order Uredineæ
    • ***


Webster's Revised Unabridged Dictionary
L., a blast, blight, a burning itch, fr. urere, to burn, to scorch