difference table

noun

: an auxiliary table to facilitate interpolation between the numbers of the principal table giving approximate differences in values of the tabulated function corresponding to certain submultiples (such as tenths) of the constant smallest increment of the independent variable in the table

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

• More than 250,000 words that aren't in our free dictionary
• Expanded definitions, etymologies, and usage notes
• Advanced search features
• Ad free!