1) Battle of pydna 2) Music venue in Germany 3) Pitched battle 
[missile base] Pydna is a former American missile base in Kastellaun, Germany. Nuclear-equipped MGM-1 Matador, MGM-13 Mace and Nike-Hercules Missiles were stationed here. It now hosts Nature One, a famous open-air electronic music festival. Festival facilities now utilize the very bunkers that were once home to 64 Ground-Launch Cruise Missi...[moth] Pydna (moth) is a genus of moth in the family Geometridae. ...
[n] - a major victory by the Romans over the Macedonians in 168 BC
Battle of Pydna noun a major victory by the Romans over the Macedonians in 168 BC; resulted in the downfall of the ancient Macedonian kingdom
a town in ancient Macedonia, W of the Gulf of Salonika: decisive Roman victory over the Macedonians 186b.c.