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partial derivative

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noun Mathematics.
  1. the derivative of a function with respect to one of its variables with all other variables held constant.
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Origin of partial derivative

First recorded in 1970–75
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for partial derivative

partial derivative

noun
  1. the derivative of a function of two or more variables with respect to one of the variables, the other or others being considered constant. Written ∂f/∂ x
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
partial derivative in Science

partial derivative

[pär′shəl]
  1. The derivative with respect to a single variable of a function of two or more variables, regarding other variables as constants.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.