1) Serpent worship 
snake-worship
• (n.) Serpent worship or the use of serpents as magical agencies. • (n.) Doctrines and rites of the Ophites.
Oph'ism noun 1. Doctrines and rites of the Ophites. 2. Serpent worship or the use of serpents as magical agencies. 
ophism 1. Serpent worship or the use of serpents as magical agencies. 2. The doctrine or worship of the Ophites (members of a sect which arose about the 2nd century, who paid reverence to the serpent as an embodiment of divine wisdom).