serpent UK /ˈsɜːpənt/US /ˈsɝpənt/noun 5verb 2forms 3 noun5 •A snake-like creature, such as a sea serpent.Then Beowulf too rallied. With his whetted dagger he slit a gash in the serpent's middle. — 1961 •(figurative) A person who is subtle, malicious, treacherous, or deceiving.He is a very serpent in my way. — 1596 •An obsolete wind instrument in the brass family, whose shape is suggestive of a snake (Wikipedia article). •A kind of firework with a serpentine motion. •(literary, no longer used) A snake.He falls into it, who has digg'd a Pit. Who breaks a Hedge is with a Serpent bit. — 1712 verb2 •(no longer used) To wind or meander •(no longer used) To encircle.fruit-trees, whose boles are serpented with excellent vines — 1645 formsserpented · serpenting · serpents