Speckle (noun)

1. A small mark or spot on a surface.
2. A pattern of small, random, and closely spaced dots or spots that appear on a surface or image.

Origin:

The word 'speckle' has its origin in the late 16th century, coming from the middle low german word 'specken'. it was first used to describe a small mark or spot on a surface.

Examples:

1. The speckles on the eggs were a telltale sign of their freshness.
2. The speckles on the shirt were the result of a small stain.
3. The speckle pattern was used to analyze the movement of particles in the liquid.
4. The speckles on the film were the result of dirt on the lens.
5. The speckles on the wall were from the paint that had not been evenly applied.