Final answer:
The medical term for greasy or waxy dandruff is pityriasis steatoides. It indicates oily scales on the scalp, unlike tinea capitis and other tineas, which are fungal skin infections causing different symptoms and appearance.
Step-by-step explanation:
The medical term for greasy or waxy dandruff is pityriasis steatoides. This condition is characterized by an excessive secretion of sebum that results in oily scales or flakes on the scalp. It differs from other forms of dandruff, which can be dry and flaky.
Conditions like tinea capitis (ringworm of the scalp), tinea corporis (ringworm on the body), tinea pedis (athlete's foot), and tinea barbae (barber's itch), are all examples of tineas which are superficial fungal infections of the skin caused by dermatophytes. They can cause a variety of symptoms ranging from itching and burning to the appearance of circular lesions, but they are not the same as pityriasis steatoides.