Definition of "y-axis" []

  • The vertical axis of a two-dimensional Cartesian coordinate system. (noun)
  • One of three axes in a three-dimensional Cartesian coordinate system. (noun)
  • A reference axis, usually vertical, of a graph or two- or three-dimensional Cartesian coordinate system along which the y-coordinate is measured (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. (c) HarperCollins Publishers Ltd 2016

Use "y-axis" in a sentence
  • "Here we go … the x-axis is the independent variable (price of chicken) … the y-axis is the dependent variable (squirrel population)."
  • "The key to understanding this one is knowing that her dependent variable is on the y-axis, so Insecurity is being predicted by the independent variable on the x-axis, Products."
  • "That missing ‘l’ made me misread the y-axis label as something related to atheism."