Noah Webster's New International Dictionary of the English Language

1. (a.) Producing fruit or vegetation in abundance; fruitful; able to produce abundantly; prolific; fecund; productive; rich; inventive; as, fertile land or fields; a fertile mind or imagination.

2. (a.) Capable of producing fruit; fruit-bearing; as, fertile flowers.

3. (a.) Containing pollen; -- said of anthers.

4. (a.) produced in abundance; plenteous; ample.