See what happens if you try a second cousin of an electron.
British Dictionary definitions for second cousin
second cousin
noun
1.
the child of a first cousin of either of one's parents
Idioms and Phrases with second cousin
second cousin
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.