by HowStuffWorks.com Contributors Home & Garden | Construction Planning. NEXT PAGENEXT. A prototype is a design tool used to help create a new product, much like a model. There are different kinds of prototypes; some are more like rough drafts and some are more like the final version.
Definition of rash - acting or done without careful consideration of the possible consequences; impetuous Definition of rash - acting or done without careful consideration of the possible consequences; impetuous
Noun. 1. erythema-abnormal redness of the skin resulting from dilation of blood vessels (as in sunburn or inflammation). erythema multiforme-a red rash caused by hypersensitivity to a drug or disease or other allergen.