elastinyoudaoicibaDictYouDict[elastin 词源字典]
"An elastic, fibrous glycoprotein found in connective tissue", Late 19th century: from elastic + -in1.[elastin etymology, elastin origin, 英语词源]
fetoproteinyoudaoicibaDictYouDict
"A protein present in fetal serum; specifically (more fully alpha-fetoprotein) a glycoprotein which is the predominant serum protein of the fetus and can also be detected in amniotic fluid and maternal blood, in which an elevated level is associated ​with certain congenital abnormalities of the fetus, especially spina bifida and anencephaly; abbreviated AFP", 1960s. From fetus + -o- + protein, after Russian fetoprotein, itself after French foeto-protéine.