It describes someting ring-shaped (annular).
Prognosis is the medical term used to describe the potential outcome of a disease. For example, the prognosis for strep throat is excellent, with the expectation of a full recovery. The prognosis for lung cancer is bleaker.
It is a medical term for hidden, obscure or without apparent cause. It can be used such as the cancer was in crypto. It may also be a term for the parasite and the disease that it brings.
Both terms have the same meaning. Communicable disease is the term used in the medical community and would read better if you are writing a paper.
"Pneumonoultramicroscopicsilicovolcanoconiosis" is a term used to describe a lung disease caused by inhalation of very fine silicate or quartz dust particles. It can be found in medical dictionaries as an example of a very long medical term to demonstrate the complexity of medical terminology.
Gynecopathy means female disease, but I've never seen it used in 20 years in gynecology.
Pathy (path = disease + y = process) is used to indicate a disease condition. Andropathy means disease processes particular to men. Pathology meand the process of studying diseases. Sometimes, instead of using "disease" the term will have it a medical condition. In that case you will see "-iasis" or "-osis added as a suffix as in hyperhydrosis (hyper = a lot + hydr = water + osis = condition of).
The medical term for instrument is "device" or "tool."
Myelitis is a term that is generally used to denote inflammation or infection of the spinal cord.
The medical term poly is used as a prefix for many
Hypochondriasis is the medical term meaning condition of always thinking you're sick. Sometimes the word somaticization is used to mean attributing medical symptoms to conditions that are not related to the body (soma) but are related to psychosocial issues.
Bleeding is the medical term for bleeding. In days gone by, the term exsanguinating was used.
Cushing's syndrome is the more commonly used medical term for hypercortisolism.