Examples of use of polymorphic
1. For many years we have suffered from Polymorphic light eruption (Very bad prickly heat). As well as burning badly I have never gone even slightly brown and cannot sit in the sun for more than 30 mins.
2. "I was told I would need to live in a darkened room for the rest of my life, but the suit changed all that." Doctors believe Mrs Wilson, whose 36–year–old husband Richard is a technical operator, was born with an allergy known as polymorphic light eruption.