Webster's 1828 Dictionary
SLICKENSIDES
n.A name which workmen give to a variety of galena in Derbyshire.
Webster's 1913 Dictionary
SLICKEN
SLICKEN Slick "en, a.
Defn: Sleek; smooth. [Prov. Eng. ]
SLICKENS
Slick "ens, n. Etym: [Cf. Slick, n.] (Mining )
Defn: The pulverized matter from a quartz mill, or the lighter soil of hydraulic mines. [Local, U. S.]
SLICKENSIDES
SLICKENSIDES Slick "en *sides `, n.
1. The smooth, striated, or partially polished surfaces of a fissure or seam, supposed to have been produced by the sliding of one surface on another.
2. A variety of galena found in Derbyshire, England.
New American Oxford Dictionary
slickenside
slick en side |ˈslikənˌsīd ˈslɪkənsaɪd | ▶noun (usu. slickensides ) Geology a polished and striated rock surface that results from friction along a fault or bedding plane. ORIGIN mid 18th cent.: from a dialect variant of the adjective slick + side .
Oxford Dictionary
slickenside
slicken |side |ˈslɪk (ə )nsʌɪd | ▶noun (usu. slickensides ) Geology a polished and striated rock surface that results from friction along a fault or bedding plane. ORIGIN mid 18th cent.: from a dialect variant of the adjective slick + side .
The Wordsmith Dictionary