WordNet-Online
Free dictionary and thesaurus of English. Definitions, synonyms, antonyms and more...
Hint:double-click any word to get it searched!
index number
Nounindex number has 1 sense
index, index number, indicant, indicator - a number or ratio (a value on a scale of measurement) derived from a series of observed facts; can reveal relative changes as a function of time --1is a kind offact --1has particulars: