Which medical term refers to an unusually large tongue?

The term that refers to an unusually large tongue is macroglossia. This medical condition can result from a variety of factors, including genetic disorders, swelling, or other underlying health conditions. Macroglossia can affect the oral cavity, leading to difficulties with speech, eating, and hygiene.

Understanding the components of the term can also clarify its meaning: "macro" indicates something large, and "glossia" is derived from the Greek word for tongue. This distinction is key to identifying the condition correctly in clinical practice.

Other terms in the options have different meanings. For instance, glossitis refers to inflammation of the tongue, microglossia indicates an unusually small tongue, and lingua is simply the Latin term for tongue without any modifier regarding size.