Definition: Anhaline is an element that exists in two isotopes: halogen atoms (like chlorine) with atomic numbers 35, 47, and 72. The word "anhaline" comes from the Latin name "Halia," which means "light." It's also known as chlorine or hydronium ion. This element is named after an ancient Greek philosopher who famously said, "Anhalus, Halia, meo, quod non moratur." In Greek mythology, this phrase implies that one must continue and persevere in order to remain alive.