1) Genus ophiophagus 2) King cobra 3) Reptile genus 
• (n.) A genus of venomous East Indian snakes, which feed on other snakes. Ophiophagus elaps is said to be the largest and most deadly of poisonous snakes.
O`phi·oph'a·gus noun [ New Latin See Ophiophagous .] (Zoology) A genus of venomous East Indian snakes, which feed on other snakes. Ophiophagus elaps is said to be the largest and most deadly of poisonous snakes. 
Ophiophagus is a genus of venomous snakes, found in the East Indies. They feed on other snakes. Ophiophagus elaps is said to be the largest and most deadly of the poisonous snakes.
[n] - king cobra
ophiophagous, ophiophagus 1. Eating or consuming serpents; there is a genus of very venomous serpents allied to the cobra, inhabiting the East Indies, that eat other snakes. 2. Feeding on serpents; said of certain birds and other reptiles.
genus Ophiophagus noun king cobra