" serum "

[Noun]  | "se*rum" | \ ˈsir-əm \

1: the watery, clear portion of an animal fluid:

2: the clear, yellowish fluid that remains from blood plasma after clotting factors (such as fibrinogen and prothrombin) have been removed by clot formation : blood serum

3: a normal or pathological serous fluid (as in a blister)

Origin: 1651 ;

 Borrowed from Latin, "whey, wheylike fluid," of uncertain origin;

  * Note : Latin serum has been conventionally linked with Greek orós, of identical meaning, and both compared with the Sanskrit verbal base sar-, allegedly meaning " flow" in Vedic texts (hence P. Chantraine in Dictionnaire étymologique de la langue grecque). More recently, however, this interpretation has been rejected, and sar- read as "run off"—hence Vedic Sanskrit ásarat "ran off," prasísarti "lets run, stretches, extends," not akin to sáraḥ "lake, pond" and related words, which describe still water. The Sanskrit etymon has been further compared with Greek hállomai "(I) spring, hop," Latin salīre "to jump" (see: {sally:2|sally:2}). If this is correct the Indo-European base is *sel-, and any connection to serum and orós impossible; these two words are left then without any certain etymology.;

[Noun]  | "serum albumin" 

1: a crystallizable albumin or mixture of albumins that normally constitutes more than half of the protein in blood serum and serves to maintain the osmotic pressure of the blood

Origin: 1879 ;

[Noun]  | "serum globulin" 

1: a globulin or mixture of globulins occurring in blood serum and containing most of the antibodies of the blood

Origin: circa 1890 ;

[Noun]  | "serum hepatitis" 

1: hepatitis b

Origin: 1932 ;

[Noun]  | "serum sickness" 

1: an allergic reaction to the injection of foreign serum manifested by hives, swelling, eruption, arthritis, and fever

Origin: circa 1913 ;

[Noun]  | "blood serum" 

1: the clear yellowish fluid that remains from blood plasma after clotting factors (such as fibrinogen and prothrombin) have been removed by clot formation

Origin: 1801 ;

[Noun]  | "convalescent serum" 

1: blood serum that is obtained from an individual who has recovered from an infectious disease and contains antibodies against the infectious agent of the disease and may be administered by intravenous transfusion to prevent or treat infection in other individuals

Origin: 1902 ;

[Noun]  | "truth serum" 

1: a hypnotic or anesthetic held to induce a subject under questioning to talk freely

Origin: 1913 ;

[Adjective]  | "serum" 

1: occurring or found in the blood serum

Origin: 1876 ;

 From attributive use of {see: |serum:1|serum:1};

[Noun]  | "serum"