source: By Mujaddara, CC BY-SA 3.0

(of soil or land) producing or capable of producing abundant vegetation or crops:

〈土地が〉肥沃な, 肥えた(productive)(↔ barren, sterile, infertile)

e.g. fields along the fertile flood plains of the river

e.g. figurative : Germany in the 1920s and 30s was fertile ground for such ideas.

(of a seed or egg) capable of becoming a new individual.

〘生物〙 受精した

(of a person, animal, or plant) able to conceive young or produce seed:

〈人間･動植物が〉多産(系)の, 繁殖力の強い, よく実を結ぶ; 生殖能力のある, 妊娠可能な.

e.g. Barbara carefully calculated the period when she was most fertile.

(of a person's mind or imagination) producing many new and inventive ideas with ease.

〖通例名詞の前で〗想像力に富んだ〈心など〉

(of a situation or subject) fruitful and productive in generating new ideas:

〖名詞の前で〗新しいものを生み出す, 温床となる〈環境･状況など〉

e.g. a series of fertile debates within the social sciences.

Physics (of nuclear material) able to become fissile by the capture] of neutrons.

〘物理〙 核分裂物質に変換できる, 親の

late Middle English: via French from Latin fertilis, from ferre ‘to bear’.