What term denotes a tumor that is benign?

The term that denotes a tumor that is benign is "encapsulated." Benign tumors are typically characterized by their well-defined boundaries and being encapsulated, which means they are surrounded by a layer of tissue that keeps them contained and separate from surrounding tissues. This encapsulation allows for a clearer distinction between the tumor and the healthy tissue, making benign tumors less likely to invade other tissues or metastasize, a common feature of malignant tumors.

In contrast, malignant tumors are not encapsulated and are more aggressive, often spreading to other parts of the body. Carcinomatosis refers to the widespread presence of cancerous tumors, and fibrous pertains more to the tissue composition rather than the classification of tumors. Therefore, encapsulated is the correct term associated with benign tumors.