Noun

(uncountable) The condition, or the degree, of being fertile.

Muckspreading increases the fertility of the soil.

(countable) The birthrate of a population; the number of live births per 1000 people per year.

The average number of births per woman within a population.

Noun

(en noun)

The act or process of rendering fertile.

The act of fecundating or impregnating animal or vegetable gametes; especially, the process by which in flowers the pollen renders the ovule fertile, or an analogous process in flowerless plants; fecundation; impregnation.

*{{quote-magazine, year=2013, month=May-June, author= Katrina G. Claw

, title= Rapid Evolution in Eggs and Sperm , volume=101, issue=3, magazine=(American Scientist) , passage=In plants, the ability to recognize self from nonself plays an important role in fertilization', because self-'''fertilization''' will result in less diverse offspring than ' fertilization with pollen from another individual.}}