Katchalsky
Katchalsky is a surname of Polish and Jewish origin. It is believed to derive from the Yiddish word "kats," meaning "cat." The name may have been a nickname given to someone with cat-like qualities, or it could have been a patronymic surname.
Several notable individuals have borne the Katchalsky surname. Among them is Aharon Katchalsky, a prominent Israeli
Another prominent figure is Ephraim Katchalsky, often referred to as Katchalsky himself, who was Aharon Katchalsky's