serpentine
adjective
°Sinuous; curving in alternate directions.
"The serpentine path through the mountains was narrow and dangerous."
°Having the shape or form of a snake.
"There are serpentine species of lizards which do not have legs."
noun
°Any of several plants believed to cure snakebites.
°An early form of cannon.
synonyms: sinuous, tortuous, winding, ophidian