Definition of rock fan in English:

rock fan

noun

Geomorphology
  • A convex, fan-shaped rock surface, typically covered with rock fragments, formed by water erosion, typically at the foot of a slope where the course of a stream widens and becomes less steep.

noun

  • An enthusiast of rock music.

Origin

Early 20th century. From rock + fan<br>1950s; earliest use found in The Guardian. From rock + fan.

Pronunciation

rock fan

/ˌrɒk ˈfan/