Urticaria 03 : Medicine. A vascular reaction of the skin showing localized edema and marked by the development of wheals (raised, itching red areas typical of an allergic response)
W. A. N Dorland and E. J. Taylor (editors), Glossary of MSDS Terms, Texas A&M University, USA 2001. http://www.bio.tamu.edu/USERS/TONNA/GLOSSARY.HTM, (MSDS - Amer) {631}
