What is "cospicua"

Cospicua , also known by its titles Città Cospicua or Civitas Cottonera, is a double-fortified harbour city in the South Eastern Region of Malta. Along with Birgu and Senglea, it is one of the Three Cities, located within the Grand Harbour to the east of the capital city Valletta. With a population of 5,395 as of March 2014, it is the most dense city of the Three Cities.