second cousin

1. A child of a first cousin of one's parent.
2. A child of one's first cousin; a first cousin once removed.

Something that is related or similar but not quite the same, as in This beef stew is second cousin to boeuf bourguignon. This expression transfers the literal sense of second cousin--that is, the child of the first cousin of one's mother or father--a usage dating from the mid-1600s.

The noun has one meaning:

Meaning #1: a child of a first cousin