Hispanic

Concise Oxford English Dictionary © 2008 Oxford University Press:
Hispanic /hɪˈspanɪk/

▶adjective relating to Spain or to Spanish-speaking countries, especially those of Central and South America.

■ relating to Spanish-speaking people or their culture, especially in the US.

▶noun a Spanish-speaking person, especially one of Latin American descent, living in the US.

– derivatives
Hispanicize (or Hispanicise) verb.

– origin from L. Hispanicus, from Hispania ‘Spain’.

usage: In the US, Hispanic is the standard accepted term when referring to Spanish-speaking people living in the US. Other, more specific, terms such as Latino and Chicano are also used where occasion demands.