what is a resident alien?

A resident alien is one who is permanently staying in a country for a long period of time for employment, education and other purposes. A non-resident alien is one who is just visiting the country.

a citizen of one country who has been granted permit or visa to reside in another country...

someone who has temporary papers? google it.

A person who is an immgrant and has a green card who is elligible to stay in aplace and be citizenship of one country

is a person living legal "but " he o she , is not , citizen ,.

A foreigner with a legal resident visa.

an oxymoron

Well, New Mexico has resident aliens and those found in Roswell.

Do you mean "legal" and "illegal" alien? Then, if so an "illegal" alien is someone who is not legally a US citizen and is living in the US without the government's permission.

A citizen of another country who lives in the United States and/or has resident status by law or visa, or passes the substantial presence test.

my mommy

Resident Alien - someone who holds a green card.

An illegal immigrant.