rash 英語で:

1. a lot of small red spots on the skin

英語 "という言葉rash"（a lot of small red spots on the skin）集合で発生します。

2. to display or to proceed from a lack of careful consideration of the possible consequences of an action

英語 "という言葉rash"（to display or to proceed from a lack of careful consideration of the possible consequences of an action）集合で発生します。

3. eruption

4. acting or done without careful consideration of the consequences