anti aliasing

This term is a technical specification primarily used in digital imaging, gaming, and computer graphics. It describes the process of smoothing "jaggies"—the stair-step artifacts that appear on diagonal lines due to the square nature of pixels. The term is typically used as a noun or a modifier in technical settings, such as "anti-aliasing settings" or "enabling anti-aliasing."

Because it refers to a specific computational process or technique, it is treated as an uncountable noun. You would not refer to "three anti aliasings"; instead, you would discuss "different types of anti-aliasing" or "the level of anti-aliasing."