from The Century Dictionary.

  • noun The use of signals; in railroading, the business of controlling the traffic by means of signals.

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

  • verb Present participle of signal.
  • noun biochemistry The sending of a biochemical signal

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

  • noun any nonverbal action or gesture that encodes a message


Sorry, no etymologies found.



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