The definition of contiguous is two things that are connected or touching along one side.(adjective)
An example of contiguous is how Chile shares a border with Argentina.
See contiguous in Webster's New World College Dictionary
Origin: L contiguus, bordering upon < base of contingere, to touch upon: see contact
See contiguous in American Heritage Dictionary 4
Origin: From Latin contiguus
Origin: , from contingere, contig-, to touch; see contact.
Learn more about contiguous