the ratio of live births in an area to the population of that area; expressed per 1000 population per year

[ Syn: birthrate , birth rate , fertility rate , natality ]

the state of being fertile; capable of producing offspring

[ Syn: fecundity ]

the property of producing abundantly and sustaining vigorous and luxuriant growth; he praised the richness of the soil; weeds lovely in their rankness

[ Syn: richness , rankness , prolificacy ]