Preclinical vs. Nonclinical — What's the Difference?

Of or relating to the period of a disease before the appearance of symptoms

Not clinical#Adjective, as:

Of or relating to research conducted prior to direct experimental treatment or observation of human subjects

But not clinical in the sense of clinical medicine#Noun, being instead, for example, radiological, histopathological, surgical, or laboratorial.

Of or relating to a period in an individual's medical education before they begin clinical work

Not medical, being instead lay in nature, or at most paramedical#Adjective.

(medicine) Describing the period of a disease before any symptoms appear

Describing a test or trial of a new pharmaceutical on animals (or in vitro) rather than on humans

Of or relating to the early phases of a disease when accurate diagnosis is not possible because symptoms of the disease have not yet appeared