Which term means "under the tongue"?

The term that specifically means "under the tongue" is sublingual. This terminology is commonly used in the context of medication administration, where certain drugs are placed under the tongue to allow for rapid absorption into the bloodstream. The sublingual area has a rich supply of blood vessels, which facilitates quick entry into systemic circulation, making this route effective for medications that need to work quickly or bypass the digestive system.

In contrast, the other terms refer to different anatomical or pharmacological concepts. Insigna does not pertain to a recognized term in this context. Ophthalmic refers to anything related to the eye, such as medications administered as eye drops. Buccal refers to the inside of the cheek and describes another route of drug administration, distinct from sublingual. Understanding these distinctions enhances comprehension of pharmacological terminology and medication administration routes.