from the GNU version of the Collaborative International Dictionary of English.

  • noun any physiologically active internal secretion, especially one of uncertain classification.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun Alternative form of autacoid.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun any physiologically active internal secretion especially one of uncertain classification


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