<p><strong>Adjective</strong></p><ul><li>bearing, producing, or capable of producing vegetation, crops, etc., abundantly; prolific: fertile soil.<ul><li>Synonyms: teeming, fecund</li><li>Antonyms: barren, sterile</li></ul></li><li>bearing or capable of bearing offspring.<ul><li>Synonyms: teeming, fecund</li><li>Antonyms: barren, sterile</li></ul></li><li>abundantly productive: a fertile imagination.<ul><li>Synonyms: teeming, fecund</li><li>Antonyms: barren, sterile</li></ul></li><li>producing an abundance (usually followed by of or in): a land fertile of wheat.</li><li>conducive to productiveness: fertile showers.</li><li>Biology: fertilized, as an egg or ovum; fecundated.</li><li>capable of growth or development, as seeds or eggs.</li><li>Botany: capable of producing sexual reproductive structures.</li><li>capable of causing fertilization, as an anther with fully developed pollen.</li><li>having spore-bearing organs, as a frond.</li><li>Physics: (of a nuclide) capable of being transmuted into a fissile nuclide by irradiation with neutrons.<ul><li>Compare: fissile (def 2).</li><li>Example: Uranium 238 and thorium 232 are fertile nuclides.</li></ul></li></ul>