impurity

Although it behaves like a single particle, this quasiparticle actually arises from the collective motion of the impurity and the particles around it.

From Science Daily ● Jul. 9, 2026

As a result, impurity buildup and energy losses were greatly reduced, allowing the plasma density to increase steadily by the end of startup.

From Science Daily ● Jan. 4, 2026

It followed concerns in several countries that the products may contain the impurity.

From BBC ● Oct. 9, 2024

The act’s namesake, Anthony Comstock, was a deeply religious Civil War veteran turned anti-vice crusader from New York who was obsessed with combating what he saw as a culture of sexual impurity.

From New York Times ● May 16, 2023

Perhaps she’s the impurity in him, the static in his signal that the bullies can sense.

From "All the Light We Cannot See" by Anthony Doerr

According to Prof. Schmidt, the new theory provides a versatile way to describe quantum impurities across different spatial dimensions and a wide variety of interactions.

From Science Daily ● Jul. 9, 2026

Traditional transistor manufacturing relies on a process called doping, which introduces impurities into silicon to control electrical behavior.

From Science Daily ● May 30, 2026

The manufacturing process can also introduce impurities — like bacteria or heavy metals — into peptide drugs.

From Salon ● Apr. 4, 2026

Ice masters look at the PH levels of the water and purify it to remove minerals and impurities.

From BBC ● Feb. 10, 2026

Worst of all, he will have no resistance to germs and infection; he will be very susceptible to pneumonia or even the mildest impurities in his food and water.

From "Z for Zachariah" by Robert C. O’Brien