from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A measure of responsiveness
  • n. A measure of the gain of a system

from The Century Dictionary and Cyclopedia

  • n. The character of being responsive; specifically, in anthropology, mental responsiveness; that attribute of mind in virtue of which there is a relation of correspondence between modes of thought and physical surroundings, so that the human mind, for example, even in its more complex operations, reflects environment with striking fidelity.


Sorry, no etymologies found.



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