from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun The bodily system that consists of the endocrine glands and functions to regulate body activities.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun physiology A control system of
ductless glandsthat secrete hormoneswhich circulate via the bloodstream to affect cells within specific organs.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun the system of glands that produce endocrine secretions that help to control bodily metabolic activity
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