The noun rash has 2 senses (no senses from tagged texts)
1. rash, roseola, efflorescence, skin rash -- (any red eruption of the skin)
2. rash, blizzard -- (a series of unexpected and unpleasant occurrences; "a rash of bank robberies"; "a blizzard of lawsuits")
Overview of adj rash
The adj rash has 2 senses (no senses from tagged texts)
1. rash -- (imprudently incurring risk; "do something rash that he will forever repent"- George Meredith)
2. foolhardy, heady, rash, reckless -- (marked by defiant disregard for danger or consequences; "foolhardy enough to try to seize the gun from the hijacker"; "became the fiercest and most reckless of partisans"-Macaulay; "a reckless driver"; "a rash attempt to climb Mount Everest")