natality Natalie • nataloin · · · Info · Definitions · Synonyms · Characters · · natality · · Text Latin · · Script 8 · · Length Definitions · · · (noun) the ratio of live births in an area to the population of that area; expressed per 1000 population per year. Synonyms: birthrate, birth rate, fertility, fertility rate. · · Noun Definition 1 Synonyms · · · birthrate · · Synonym 1 birth rate · · Synonym 2 fertility · · Synonym 3 fertility rate · · Synonym 4 Characters · · a latin small letter a U+0061 i latin small letter i U+0069 l latin small letter l U+006C n latin small letter n U+006E t latin small letter t U+0074 y latin small letter y U+0079