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Từ điển American Heritage Dictionary 4th
secretion
I. se·cre·tion1 (sĭ-krēʹshən)n. 1. The process of secreting a substance, especially one that is not a waste, from the blood or cells: secretion of hormones; secretion of milk by the mammary glands. 2. A substance, such as saliva, mucus, tears, bile, or a hormone, that is secreted. [French sécrétion, from Old French, separation, from Latin sēcrētiō, sēcrētiōn-, from sēcrētus, past participle of sēcernere, to set aside. See secern.] se·creʹtion·ar'y (-shə-nĕr'ē) adj. II. se·cre·tion2 (sĭ-krēʹshən)n. 1. The act of concealing something in a hiding place. 2. The act of stealing something secretly. [From secrete2.]
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