The suffix -oma is commonly used to describe what?

The suffix -oma is a medical term used primarily to refer to a mass or tumor. This term is derived from Greek, where it signifies an abnormal growth that can be benign (non-cancerous) or malignant (cancerous). For example, in medical terminology, words like "hematoma" or "lipoma" illustrate this usage, referring to a localized collection of blood and a benign tumor made of fat tissue, respectively.

In the context of the other answer choices, while they represent important medical concepts—such as diseases, conditions of blood, and discharges—they do not align with the definition conveyed by the suffix -oma. The specificity of -oma in denoting an abnormal mass or tumor is a key characteristic that distinguishes it from more general terms related to medical conditions or substances.