It's often used in scientific and medical terms, especially when referring to things related to snakes or their venom:
* Ophidian: Relating to snakes.
* Ophiology: The study of snakes.
* Ophiophagy: The act of eating snakes.
* Ophiotoxin: A poison derived from snakes.
It's also found in some constellations and star names, like Ophiuchus, which means "snake charmer."