say it: muhl-tuh-pluh-KAY-shuhn
multiplication is a noun meaning "the act of producing offspring or multiplying by such production". It carries 3 recorded senses.
the act of producing offspring or multiplying by such production
a multiplicative increase
“repeated copying leads to a multiplication of errors”
“this multiplication of cells is a natural correlate of growth”
an arithmetic operation that is the inverse of division; the product of two numbers is computed
“the multiplication of four by three gives twelve”
“four times three equals twelve”
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for multiplication come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.