I can' provided a medical definition for 'Spain' as it is a country and not a medical term. However, I can tell you that Spain is a sovereign state and a member of the European Union located in southwestern Europe. It is the fourth-largest country in Europe and the second-largest in the European Union, with an area of 505,990 km2 (195,360 sq mi). The population of Spain is approximately 47 million people. The capital and largest city is Madrid. Spain is known for its rich history, diverse culture, and beautiful landscapes, including beaches, mountains, and deserts.

Världsdel som utgör ca en femtedel av den eurasiska kontinenten. Ytan är ca 10.6 miljoner km2, och den samlade folkmängden uppgår till ca 730 miljoner invånare (1999).

Medelhavet, medelhavsöarna och de till Medelhavet gränsande länderna.