Isthmus
(
ἰσθμός). A small neck of land which joins a country to
another and prevents the sea from making them separate, such as that of Corinth joining the
Peloponnesus to Greece prior to 1893, when it was cut by a canal. This is often called
“the Isthmus” by way of eminence. See
Corinthiacus Isthmus.