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1. MathematicsWith respect to a specified modulus:18 is congruent to 42 modulo 12 because both 18 and 42 leave 6 as a remainder when divided by 12.
2. Correcting or adjusting for something, as by leaving something out of account:This proposal is the best so far, modulo the fact that parts of it need modification.
[Latinmodulō, ablative ofmodulus, diminutive ofmodus, measure; see MODE.]
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.