The definition of bicoastal is something related to two different coasts, especially the east and west coast of the U.S.
(adjective)An example of someone who would be described as bicoastal is a person who has a home in both California and New York and who splits his time between the two locations.
See bicoastal in Webster's New World College Dictionary
adjective
See bicoastal in American Heritage Dictionary 4
adjective