Meatus vs. Hiatus — What's the Difference?

A meatus is a term primarily used in anatomy to describe a natural opening or canal within the body, such as the auditory meatus in the ear, allowing for specific physiological functions like the passage of fluids or air. On the other hand, a hiatus has a broader application, often used in general language to denote a pause, gap, or break in continuity, sequence, or activity. It can refer to anything from a physical gap, as in a hiatus hernia, where part of the stomach pushes through the diaphragm, to a break in work or other activities.

While meatuses are specifically anatomical structures, serving as passages or channels for various substances in the body, hiatuses can occur in a wide range of contexts, including literature, work, and physical structures. For instance, a writer might take a hiatus from writing, or there could be a hiatus in a television series between seasons.

Meatuses are essential for the functioning of the body, facilitating the movement of air, fluids, and other substances to and from different body parts. Hiatuses, however, are often seen as interruptions or breaks from the norm, which can be either intentional, such as a sabbatical, or unintentional, like a disruption in a series of events.

The term meatus comes from the Latin word meaning "a passage," reflecting its role in the body as a conduit for substances. Meanwhile, hiatus derives from Latin as well, meaning "an opening, gaping mouth, or chasm," symbolizing the concept of a break or gap.