Merrimac

noun an ironclad vessel built by the Confederate forces in the hope of breaking the blockade imposed by the North
Found on https://www.encyclo.co.uk/local/20974

Merrimac

Swift River, river of New England.
Found on http://users.michweb.net/~orendon/americans/glosary2.html

Merrimac

[n] - an iron-clad vessel built by the Confederate forces in the hope of breaking the blockade imposed by the North
Found on http://www.webdictionary.co.uk/definition.php?query=Merrimac
No exact match found