fecund
ACTUAL REPRODUCTIVE RATE OF AN ORGANISM OR POPULATION, MEASURED BY THE NUMBER OF GAMETES (EGGS), SEED SET, OR ASEXUAL PROPAGULES. FECUNDITY IS SIMILAR TO FERTILITY, THE NATURAL CAPABILITY TO PRODUCE OFFSPRING
Fecund; Fecundities; Replicative capacity
1.
Land or soil that is fecund is able to support the growth of a large number of strong healthy plants. (FORMAL)
The pampas are still among the most fecund lands in the world...
ADJ
2.
If you describe something as fecund, you approve of it because it produces a lot of good or useful things. (FORMAL)
It has now become clear how extraordinarily fecund a decade was the 1890s.
= productive
ADJ [approval]