1. Referring to how the production of offspring, young, fruit, etc. occurs in an abundant manner; highly fruitfully: Sherry and Nils always enjoy how prolifically their apple tree gives them fruit.
2. A reference to how the production of something takes place in large quantities or with great frequency; highly productively: Tammy was writing prolifically every year.
3. Characterizing how vegetables, plants, etc. yield abundantly: John's garden gave him plenty to eat that year because it prolifically produced great crops.