occult

Definition

Medical findings that are hidden or not readily observable, particularly referring to blood in stool not visible to the naked eye. Medical mysteries, supernatural powers not included.

Example Usage

The fecal occult blood test came back positive, warranting colonoscopy to investigate for colorectal pathology.

Origin

From Latin 'occultus' meaning 'hidden' or 'concealed'

Fun Fact

The term 'occult' in medicine has nothing to do with mysticism—it simply means the finding requires special tests to detect.

Source: Laboratory medicine and gastroenterology terminology

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