Yes. They are 0.39% blood relations and share an eighth of each other's ancestry.
Your grandmother's third cousin is your third cousin, twice removed.
Your husband's third cousin is just considered your third cousin through marriage.
The son of your mother's third cousin is your fourth cousin.
AB+ is the third rarest blood type. 1 person in 29 has AB+ which is 3.4% percent of the population.
Though I may be wrong, im sure a 2nd cousin would be a "cousin in law" of your cousin. No blood relation at all, therefore if he or she is cute, go for it, but ask your cousin to be polite. Or dont, I personally dont care.
Third cousin twice removed.
First cousins' grandchildren are third cousins to each other.
You can date anyone you want, whether third cousin or first cousin. Going beyond simply dating may raise issues with a first cousin, but not with a third cousin.
A third cousin is just that, a third cousin, there is no other name for the relationship.
Your father's first cousin's child is your second cousin. Your father's second cousin's child is your third cousin. Your father's third cousin's child is your fourth cousin. and so on.
Your grandson's third cousin is your first cousin twice removed, and you are hers. You count from the cousin who is closest in generation to the common ancestor in determining what kind of cousin relationship applies.