1. (Zool.) Any marine snake. See Sea snake. [ 1913 Webster ]

2. (Zool.) A large marine animal of unknown nature, often reported to have been seen at sea, but never yet captured. [ 1913 Webster ]

☞ Many accounts of sea serpents are imaginary or fictitious; others are greatly exaggerated and distorted by incompetent observers; but a number have been given by competent and trustworthy persons, which indicate that several diverse animals have been called sea serpents. Among these are, apparently, several large snakelike fishes, as the oar fish, or ribbon fish (Regalecus), and huge conger eels. Other accounts probably refer to the giant squids (Architeuthis). Some of the best accounts seem to describe a marine saurian, like the fossil Mosasauri, which were large serpentlike creatures with paddles. [ 1913 Webster ]

n. [ F., fr. L. serpens, -entis (sc. bestia), fr. serpens, p. pr. of serpere to creep; akin to Gr. &unr_;&unr_;&unr_;, Skr. sarp, and perhaps to L. repere, E. reptile. Cf. Herpes. ] 1. (Zool.) Any reptile of the order Ophidia; a snake, especially a large snake. See Illust. under Ophidia. [ 1913 Webster ]

☞ The serpents are mostly long and slender, and move partly by bending the body into undulations or folds and pressing them against objects, and partly by using the free edges of their ventral scales to cling to rough surfaces. Many species glide swiftly over the ground, some burrow in the earth, others live in trees. A few are entirely aquatic, and swim rapidly. See Ophidia, and Fang. [ 1913 Webster ]

2. Fig.: A subtle, treacherous, malicious person. [ 1913 Webster ]

3. A species of firework having a serpentine motion as it passess through the air or along the ground. [ 1913 Webster ]

4. (Astron.) The constellation Serpens. [ 1913 Webster ]

5. (Mus.) A bass wind instrument, of a loud and coarse tone, formerly much used in military bands, and sometimes introduced into the orchestra; -- so called from its form. [ 1913 Webster ]

Pharaoh's serpent (Chem.), mercuric sulphocyanate, a combustible white substance which in burning gives off a poisonous vapor and leaves a peculiar brown voluminous residue which is expelled in a serpentine from. It is employed as a scientific toy. --
Serpent cucumber (Bot.), the long, slender, serpentine fruit of the cucurbitaceous plant Trichosanthes colubrina; also, the plant itself. --
Serpent eage (Zool.), any one of several species of raptorial birds of the genera Circaetus and Spilornis, which prey on serpents. They inhabit Africa, Southern Europe, and India. The European serpent eagle is Circaetus Gallicus. --
Serpent eater. (Zool.) (a) The secretary bird. (b) An Asiatic antelope; the markhoor. --
Serpent fish (Zool.), a fish (Cepola rubescens) with a long, thin, compressed body, and a band of red running lengthwise. --
Serpent star (Zool.), an ophiuran; a brittle star. --
Serpent's tongue (Paleon.), the fossil tooth of a shark; -- so called from its resemblance to a tongue with its root. --
Serpent withe (Bot.), a West Indian climbing plant (Aristolochia odoratissima). --
Tree serpent (Zool.), any species of African serpents belonging to the family Dendrophidae. [ 1913 Webster ]

v. i. [ imp. & p. p. Serpented; p. pr. & vb. n. Serpenting. ] To wind like a serpent; to crook about; to meander. [ R. ] “The serpenting of the Thames.” Evelyn. [ 1913 Webster ]

v. t. To wind; to encircle. [ R. ] Evelyn. [ 1913 Webster ]

‖a.[ L. (sc. herba), fr. serpens serpent. ] (Med.) The fibrous aromatic root of the Virginia snakeroot (Aristolochia Serpentaria). [ 1913 Webster ]

‖n.[ NL., fr. L. serpens serpent. ] (Astron.) A constellation on the equator, lying between Scorpio and Hercules; -- called also Ophiuchus. [ 1913 Webster ]

a. [ L. serpens a serpent + -form. ] Having the form of a serpent. [ 1913 Webster ]

a. [ L. serpens, -entis, a serpent + -genous: cf. L. serpentigena. ] Bred of a serpent. [ 1913 Webster ]

a. [ L. serpentinus: cf. F. serpentin. ] Resembling a serpent; having the shape or qualities of a serpent; subtle; winding or turning one way and the other, like a moving serpent; anfractuous; meandering; sinuous; zigzag; as, serpentine braid. [ 1913 Webster ]

Thy shape
Like his, and color serpentine. Milton. [ 1913 Webster ]

n. [ Cf. (for sense 1) F. serpentine, (for sense 2) serpentin. ] 1. (Min.) A mineral or rock consisting chiefly of the hydrous silicate of magnesia. It is usually of an obscure green color, often with a spotted or mottled appearance resembling a serpent's skin. Precious, or noble, serpentine is translucent and of a rich oil-green color. [ 1913 Webster ]

☞ Serpentine has been largely produced by the alteration of other minerals, especially of chrysolite. [ 1913 Webster ]

2. (Ordnance) A kind of ancient cannon. [ 1913 Webster ]

v. i. To serpentize. [ R. ] Lyttleton. [ 1913 Webster ]

adv. In a serpentine manner. [ 1913 Webster ]

n. (Eccl.) See 2d Ophite. [ 1913 Webster ]

v. t. (Min.) To convert (a magnesian silicate) into serpentine. -- Ser`pen*tin`i*za"tion n. [1913 Webster]

a. Relating to, or like, serpentine; as, a rock serpentinous in character. [ 1913 Webster ]

v. i. To turn or bend like a serpent, first in one direction and then in the opposite; to meander; to wind; to serpentine. [ R. ] [ 1913 Webster ]

The river runs before the door, and serpentizes more than you can conceive. Walpole. [ 1913 Webster ]

n. 1. A winding like a serpent's. [ 1913 Webster ]

2. A place inhabited or infested by serpents. [ 1913 Webster ]

a. (Zool.) Having a forked tongue, like a serpent. [ 1913 Webster ]