Serum
Serum may refer to:

Biology and pharmacology
Serum (blood), plasma from which the clotting proteins have been removed
Antiserum, blood serum with specific antibodies for passive immunity
Serous fluid, any clear bodily fluid

Other uses
Gary Serum (born 1956), American baseball player
Serum, a software synthesizer VST created by Steve Duda

See also
All pages with titles beginning with Serum 
All pages with titles containing Serum
Sera (disambiguation)