gland

Definition / meaning of gland

An organ that makes one or more substances, such as hormones, digestive juices, sweat, tears, saliva, or milk. Endocrine glands release the substances directly into the bloodstream. Exocrine glands release the substances into a duct or opening to the inside or outside of the body.

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Source(s):

The Web site of the National Cancer Institute (http://www.cancer.gov/)

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