Vallecula is a term used in the medical field to describe a depression or groove between two structures or organs, such as the tongue and epiglottis. While there are no exact synonyms for the word vallecula, it can be described using different terms and phrases depending on the context. These synonyms can include: furrow, groove, crevice, depression, indentation, trough, interstice, gap, and space. While each of these terms may have slightly different definitions, they are similar in that they all describe a small, narrow hollow that can be found in various parts of the body.