serum

Từ điển WordNet v3.1 - WordNet Dictionary

noun

an amber, watery fluid, rich in proteins, that separates out when blood coagulates (Freq. 34)
• Syn:
blood serum
• Derivationally related forms:
serous
• Hypernyms:
liquid body substance, bodily fluid, body fluid, humor, humour
• Hyponyms:
antiserum, whey, milk whey
• Substance Holonyms:
blood
• Substance Meronyms:
serum albumin, serum globulin, opsonin