Definitionen
1.AdjectiveOf land, etc.: capable of growing abundant crops; productive.
2.AdjectiveOf one's imagination, etc.: active, productive, prolific.
3.AdjectiveCapable of reproducing; fecund, fruitful."Most women at the age of fifty are not fertile."
4.AdjectiveCapable of reproducing; fecund, fruitful."Most women at the age of fifty are not fertile."
5.AdjectiveCapable of developing past the egg stage.
6.AdjectiveNot itself fissile, but able to be converted into a fissile material by irradiation in a reactor."There are two basic fertile materials: uranium-238 and thorium-232."