impermeable

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Although scientists once believed that the placenta was a tight, impermeable barrier separating mother and child, that’s not true.

From The Wall Street Journal • Nov. 4, 2025

Municipal wells typically draw drinking water from hundreds of feet underground, often tapping into aquifers that lie beneath impermeable clay and silt layers called aquitards.

From Los Angeles Times • Feb. 13, 2025

Prato demonstrated the method earlier this week outside the emergency department of Valleywise Health Medical Center in Phoenix, packing ice cubes inside an impermeable blue bag around a medical dummy representing a patient.

From Seattle Times • Jun. 4, 2024

Previous studies have suggested that a layer of impermeable rock at the top of the descending tectonic plate serves as a sealed lid, trapping fluid in the pores of underlying rock layers.

From Science Daily • May 7, 2024

But it is illusion to think that there is anything fragile about the life of the earth; surely this is the toughest membrane imaginable in the universe, opaque to probability, impermeable to death.

From "The Lives of a Cell" by Lewis Thomas