Of land, etc.: capable of growing abundant crops; productive. / (figuratively) Of one's imagination, etc.: active, productive, prolific. / Capable of reproducing; fecund, fruitful.

(uncountable) The condition, or the degree, of being fertile. / (countable) The birthrate of a population; the number of live births per 1000 people per year.

(historical) A crescent-shaped strip of fertile land stretching from present-day Iraq through eastern Turkey and down the Syrian and Israeli coasts.

Wild, untamed. / Of an animal, being wild but descended from domestic or captive animals. / (of a person) Contemptible, unruly, misbehaved.

A domesticated animal that has returned to the wild; an animal, particularly a domesticated animal, living independently of humans.

Deadly, fatal. / Of or pertaining to the dead, funereal.

Pertaining to, derived from, or containing iron. / (chemistry) Of compounds of iron in which it has a valence or oxidation number of 3

The act or process of rendering fertile.

(biochemistry) Any of many anaerobic biochemical reactions in which an enzyme (or several enzymes produced by a microorganism) catalyses the conversion of one substance into another; especially the conversion (using yeast) of sugars to alcohol or acetic acid with the evolution of carbon dioxide

Any of a group of some twenty thousand species of vascular plants classified in the division Pteridophyta that lack seeds and reproduce by shedding spores to initiate an alternation of generations.