Serpentine \Ser"pen*tine\, v. i. To serpentize. [R.]

--Lyttleton.

Source: Webster's Revised Unabridged Dictionary (1913)
 

Serpentine \Ser"pen*tine\, 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.

Thy shape Like his, and color serpentine. --Milton.

Source: Webster's Revised Unabridged Dictionary (1913)
 

Serpentine \Ser"pen*tine\, 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.

Note: Serpentine has been largely produced by the alteration of other minerals, especially of chrysolite.

2. (Ordnance) A kind of ancient cannon.

Source: Webster's Revised Unabridged Dictionary (1913)