The Chinese word **嗅觉 (xiùjué)**, meaning "sense of smell" or "olfaction," is a compound word formed through the combination of two meaningful characters: **嗅 (xiù)**, which means "to smell" or "to sniff," and **觉 (jué)**, which means "sense" or "feeling." Together, they create a precise nominal term where the first character specifies the action or function (smelling) and the second character categorizes it as a type of sensory perception, resulting in the direct and logical meaning of "the sense of smell."