Definition of "polycystic" [polycystic]

• Having or containing many cysts: polycystic kidney disease. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "NATIONAL INSTITUTES OF HEALTH: And it affects hormone levels, it can increase a woman's androgen levels, increase her insulin levels, and can be part of a syndrome called polycystic ovarian syndrome."
• "OF CHILD HEALTH: It affects hormone levels, it can increase a woman's androgen levels, increase her insulin levels and can be part of a syndrome called polycystic ovarian syndrome."
• "If a woman doesn't ovulate, there's no egg to be fertilized, and the most common cause of ovulatory problems is a little talked about -- and frequently undiagnosed -- health problem called polycystic ovary syndrome, or PCOS."