filtered

adjective

fil·​tered ˈfil-tərd 

1

: having unwanted elements (such as sediments) removed by means of a filter : subjected to filtration

filtered water

2

: made less intense, full, or pure by being partially blocked

plants that do well in filtered sunlight

Adjustable slats (vanes) fit between sheets of polyester fabric, allowing a filtered view or complete privacy.

—Daniel Gregory

Frantic July tourist cars sent up a filtered sound and smell through the tall plane trees below the windows.

—M. F. K. Fisher

3

: having a filter

filtered cigarettes

A few days or perhaps weeks later, the person moves into one of the big, specially filtered rooms and starts the chemotherapy, which is tenderly called ablation.

—Sallie Tisdale

Word History

Etymology

(senses 1 & 2) from past participle of filter entry 2; (sense 3) filter entry 1 + -ed entry 1

First Known Use

circa 1600, in the meaning defined at sense 1