Simple Definition of Shikoku
: island of Japan
Full Definition of Shikoku
island S Japan E of Kyushu area 7245 square miles (18,765 square kilometers), pop 4,154,039
Learn More about shikoku
Britannica.com: Encyclopedia article about Shikoku
Seen and Heard
What made you want to look up Shikoku? Please tell us where you read or heard it (including the quote, if possible).