serum
1se·rum
noun \ˈsir-əm\ plural serums or se·ra\-ə\
Definition of SERUM
1
: the watery portion of an animal fluid remaining after coagulation: a (1) : blood serum (2) : antiserum b : whey c : a normal or pathological serous fluid (as in a blister)
2
: the watery part of a plant fluid
Examples of SERUM
- The patient was administered serum.
Origin of SERUM
Latin, whey, wheylike fluid; akin to Greek oros whey
First Known Use: 1665
Rhymes with SERUM
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