What does "proliferous" mean?

Proliferous: (Zoöl.) (a) Producing young by budding. (b) Producing sexual zooids by budding; -- said of the blastostyle of a hydroid. (c) Producing a cluster of branchlets from a larger branch; -- said of corals. Proliferous cyst (Med.), a cyst that produces highly- organized or even vascular structures. Paget. -- Pro*lif"er*ous*ly, adv.