Eczema, often referred to as atopic dermatitis(from Greek ἔκζεμα ēkzema, “to boil over”) is a form of dermatitis, or inflammation of the epidermis (the outer layer of the skin).
The word eczema comes from Greek, meaning “to boil over”. Dermatitis comes from the Greek word for skin – and both terms refer to the same skin condition. In some languages, dermatitis and eczema are synonymous, while in other languages dermatitis implies an acute condition and “eczema” a chronic one. The two conditions are often classified together.