Word of the Day: Pervious.

ADJECTIVE
1. (Of a substance) Allowing water to pass through; permeable.

Example Sentences.
1. "David realized how pervious his hiking boots were as soon as he stepped in the river."
2. "Pervious soil is crucial for ground-dwelling organisms that require water."
3. "The children's sandcastle was completely pervious; water had already washed it away by the next morning."

Word Origin.
Latin, early 17th century

If this word sounds familiar, you're likely better acquainted with its antonym "impervious." "Pervious," which predates its opposite, comes from the Latin word "pervius" ("having a passage through"). Pervious membranes are crucial for most organic, living things — humans, for example, could not survive without the permeable cells that make up our bodily systems.