fertileness

fer·tile  (fûrtl)

adj.

1. Biology

a. Capable of initiating, sustaining, or supporting reproduction.

b. Capable of growing and developing; able to mature: a fertile egg.

2. Botany Bearing functional reproductive structures such as seeds or fruit or material such as spores or pollen.

3. Bearing or producing crops or vegetation abundantly; fruitful.

4. Rich in material needed to sustain plant growth: fertile soil.

5. Highly or continuously productive; prolific: a fertile imagination; a fertile source of new ideas.

6. Physics Capable of producing fissionable material: fertile thorium 232.

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[Middle English fertil, from Old French fertile, from Latin fertilis, from ferre, to bear; see bher-¹ in Indo-European roots.]

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fertile·ly adv.

fertile·ness n.

Synonyms: fertile, fecund, fruitful, productive, prolific
These adjectives mean marked by great productivity: fertile farmland; a fecund imagination; fruitful efforts; a productive meeting; a prolific writer.