Dash, pinch and speck are nebulous terms. They can be basically whatever you like.
You dont measure dust and i dont why youde need to
Please help me get this speck of dust out of my eye.
A speck of dust is about as long as 1 millimeter; a speck of dust can be found in all houses.
not much :)
Another word is pinch, hope i helped :)
In science, a "speck of dust" typically refers to a tiny particle of solid matter suspended in the air. These particles can vary in size and composition, ranging from microscopic particles like pollen or soot to larger particles like sand or debris. In scientific contexts, the term "speck of dust" is often used to describe these small particles when discussing their effects on air quality, atmospheric processes, or their potential impact on human health.
Mom cleaned so well there wasn't a speck of dust left in the house.
as sliver is to metal