Urechitoxin
U`re*chi*tox"in
(?), n. [Urechitin + toxic + -in.] (Chem.) A poisonous glucoside found accompanying urechitin, and extracted as a bitter white crystalline substance.[1913 Webster]
U*re"do
(?), n. [L., a blast, blight, a burning itch, fr. urere to burn, to scorch.][1913 Webster]
1.
(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.
[1913 Webster]
2.
(Med.) Nettle rash. See Urticaria.
[1913 Webster]
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