They are sisters in law.
Your husband's brother's wife or your husband's sister's husband have no relation to you. Your brother's or sister's wife or husband is called a sister or brother in-law. You are only related by the marriage between them and your sibling.
niece
Your brother's wife is called your "sister-in-law." If you are a male, you are her brother-in-law and if you are female, you are her sister-in-law.
Your sister's husband is your brother-in-law.
You are no direct relation but as your wife would be an "Auntie" to him you would be called "Uncle".
There is no common ancestor, so you aren't really related. Related by marriage is one way to describe the relationship.
Breeding. Mating.
is a resisstance of a body is called inertia
It was called the Civil War. It was brother against brother.
A relation on your father's side of your family is called a paternal relation.
It's called 'My Two Husbands'.
Your sister and your wife are sisters-in-law to each other.