What is the term for urine that has no visible particulates and is transparent?

The term that describes urine with no visible particulates and a completely transparent appearance is "clear." Clear urine indicates that it is free of significant amounts of substances such as cells, bacteria, or crystalline structures that could cause cloudiness or haziness. When urine is clear, it typically reflects proper hydration and the absence of pathological conditions that might lead to turbidity.

In contrast, hazy urine may contain small amounts of particulates or substances that prevent it from being completely transparent. Cloudy urine suggests a higher concentration of particles, which can signify an infection, the presence of stones, or other health issues. Opaque urine usually indicates a significant presence of particles or substances, making it non-transparent. Thus, "clear" is the most accurate term to describe urine that is free from visible particulates and appears transparent.