subtraction/səbˈtɹækʃən/EtymologyBorrowed from Late Latin subtractio, subtractionis. Can be decomposed to subtract + -ion.subtraction means The process of subtracting a number from another. Lexicurio rates it Rare gem — a strength score of 74 out of 100.nounThe process of subtracting a number from another.A calculation involving subtracting.“The teacher has set us ten subtractions to do by tomorrow.”The removal of something.“The subtraction of the wealth from the economy will result in recession.”