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 ]