Polycystic Ovarian Disease: This disease, also commonly known as PCOS, refers to cysts that form from a buildup of follicles. They cause the ovaries to enlarge and create a thick outer covering, which may prevent ovulation from occurring. They are often the cause of fertility problems.
dune. n. A hill or ridge of wind-blown sand. [French, from Old French, from Middle Dutch. ; see dheuÉ- in Indo-European roots .].
Dunes play an important role both to the beaches that front them and the land behind them. Dunes act as a. sand reserve for beaches. Dune systems act as a buï¬er between the high energy of the ocean and the land. Dunes. provide a barrier to salt intrusion from high tides and storm surges, and it protects the land behind the dunes.