excretionn.
英 ɪk'skriːʃ(ə)n; ek- | 美 ɛk'skriʃən
中文n. 排泄，排泄物；分泌，分泌物
词根词源
excretion (n.)c. 1600, "action of excreting;" 1620s, "that which is excreted," from French excrétion (16c.), from Latin excretionem (nominative excretio), noun of action from past participle stem of excernere "to sift out, separate" (see excrement).
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