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单词 internal secretion
释义

internal secretion

Physiology
noun
1A substance secreted by an internal organ, especially one retained in the body or passing directly into the blood; (in later use) specifically a hormone secreted by an endocrine gland.
2The process of secreting such a substance; an instance of this.

Origin

Mid 18th century.

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更新时间:2024/11/14 4:20:05