Utriculus is a Latin word that refers to a small sac or pouch. There are several synonyms for this term, including the word "saccule," which is often used to refer to a small sac or pouch in the human body. Another synonym for utriculus is "vesicle," which can refer to any small fluid-filled sac, including those found in plants and animals. Additionally, the term "cyst" can be used to describe a small sac or pouch in the body, while "bladder" is a synonym for utriculus when describing the urinary bladder. Finally, the word "pouch" can also be used to describe a small, pocket-like structure in the body, such as the utriculus.