From Longman Business Dictionaryweighting factorˈweighting ˌfactor [countable]STATISTICSHUMAN RESOURCES if you are calculating an average for a group of different things, a weighting factor can be used to give more importance to certain things in the group. For example, to share money between people who need different amounts, a weighting factor could be used so that the people who needed more money would get moreThe publisher has recently announced its intention tointroduce a weighting factor which takes departmental size into account. → factor