The definition of caucasoid is something relating to the Caucasian race.(adjective)
An example of caucasoid is light skin.
Caucasoid is defined as a Caucasian person.(noun)
An example of caucasoid is someone of English and Irish ancestry.
See Caucasoid in Webster's New World College Dictionary
Origin: from the erroneous notion that the orig. home of the hypothetical Indo-Europeans was the Caucasus
See Caucasoid in American Heritage Dictionary 4