- abbr. (Latin prefix=external, outer, outside) (拉丁語前綴)外部的
- ecto-: 前綴 表示“外面”,“外部”等意 (opp. endo-; ento-): ectoblast,ectoderm.
- ecto entad: 由外向內
- ecto-mesenchymoma: 外胚層間質瘤
- ecto-endotrophic mycorrhiza: 內外生菌根
- ecto 5' nucleotidase: 《英文msh詞典》Ecto 5' Nucleotidase ; [入口詞] Ecto 5' Nucleotidase ; [主題詞] 5'-Nucleotidase ; [英文釋義] A glycoprotein enzyme present in various organs and in many cells. The enzyme catalyzes the hydrolysis of a 5'-ribonucleotide to a ribonucleoside and orthophosphate in the presence of water. It is cation-dependent and exists in a membrane-bound and soluble form. EC 3.1.3.5.
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