contagium

contagium

[kuhn-tey-juhm, -jee-uhm]
noun, plural contagia [kuhn-tey-juh, -jee-uh] . Pathology.
the causative agent of a contagious or infectious disease, as a virus.

Origin:
1645–55; < Latin, equivalent to contāg- (see contagion) + -ium -ium

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World English Dictionary
contagium (kənˈteɪdʒɪəm)
 
n , pl -gia
pathol the specific virus or other direct cause of any infectious disease
 
[C17: from Latin, variant of contāgiōcontagion]

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Medical Dictionary

contagium con·ta·gium (kən-tā'jəm)
n. pl. con·ta·gia (-jə)
The direct cause, such as a bacterium or virus, of a communicable disease. Also called contagion.

The American Heritage® Stedman's Medical Dictionary
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