Python or adder? (5)
I believe the answer is:
snake
I believe this is a double definition.
'python' is the first definition.
(thesaurus)
'adder?' is the second definition.
(adder is a kind of snake)
(Other definitions for snake that I've seen before include "former EC currency band" , "Move sinuously" , "For instance, adder" , "Chinese zodiac animal" , "Entertainer with music and reptiles" .)