the property of producing abundantly and sustaining
vigorous and luxuriant growth; "he praised the richness of the soil"; "weeds lovely in their rankness" Synonym(s):richness, rankness, prolificacy, fertility
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Prolificacy \Pro*lif"ic*a*cy\, n.
Prolificness. [R.]
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