Attenuated

The brightness of the sunlight is attenuated quickly as it passes through the water.

The monovalent oral polio vaccine uses only the attenuated strain of type-one poliovirus and only immunizes against that strain of the disease.

attenuated power

He had his tea and hot rolls in a morning, while we were battening upon our quarter of a penny loaf—our crug—moistened with attenuated small beer, in wooden piggins, smacking of the pitched leathern jack it was poured from.

She had become spiritualized in mind, even as she had grown attenuated in person.

To conclude otherwise requires accepting an attenuated fiction that commingling funds in an account, even if done decades earlier, means the account today still contains funds attributable to the sale of expropriated property.

Near-synonym: nonreplicating (often synonymous)

the live attenuated type of vaccines