the ability to produce children, crops, etc. synonym fertility生殖力旺盛的;多产的 Fecundity declines rapidly after the age of 40. 40岁以后生殖力迅速下降。
the ability to produce new and useful things, especially ideas 有发明创造力的;(尤指)能提出新颖想法的 The fecundity of her imagination remained undiminished even at 80. 即使到了80岁,她想象力的丰富程度仍未减弱。