immunoglobulin

詳細解釋：

im.mu.no.glob.u.lin

n.Abbr. Ig（名詞）縮寫 Ig
Any of a group of large glycoproteins secreted by plasma cells in vertebrates that function as antibodies in the immune response by binding the specific antigens. Immunoglobulins are found along the respiratory and intestinal tracts, on mucosal surfaces, and in milk, saliva, tears, and blood serum.
免疫球蛋白：由脊髓中的在免疫反應中通過與抗原結合而具有抗體功能的淋巴細胞隱藏起來的大量糖蛋白。免疫球蛋白分布於呼吸道和腸道的黏膜表面以及奶汁、唾液、眼淚和血漿當中