What term is used for a medical condition characterized by an abnormal growth of tissue?

The term that specifically denotes an abnormal growth of tissue is "Adenoma." Adenomas refer to benign tumors that arise from glandular epithelial tissue. These growths can occur in various organs and are characterized by their potential to grow larger but typically do not invade surrounding tissues or metastasize, distinguishing them as non-cancerous.

While "Carcinoma" pertains to cancerous growths originating from epithelial cells and "Sarcoma" refers to cancer arising from connective tissues, these terms are applicable to malignant conditions. On the other hand, "Hematoma," which is a localized collection of blood outside of blood vessels, does not indicate a growth of tissue in the same context.

Thus, for the definition of an abnormal growth of tissue, "Adenoma" is indeed the most suitable term.