"backpropagation." YourDictionary, n.d. Web. 06 December 2018. <https://www.yourdictionary.com/backpropagation>.
backpropagation. (n.d.). Retrieved December 06th, 2018, from https://www.yourdictionary.com/backpropagation
(countable and uncountable, plural backpropagations)
(computing) An error correction technique used in neural networks
(neurology) A phenomenon in which the action potential of a neuron creates a voltage spike both at the end of the axon, as normally, and also back through to the dendrites from which much of the original input current originated.