Definition of ruiniform in English:

ruiniform

adjective

Geology
  • Presenting the appearance of ruins; (of marble or other decorative stone) having distinctive markings likened to the outline of ruined buildings.

Origin

Early 19th century; earliest use found in Robert Jameson (1774–1854), geologist and natural historian. From ruin + -iform, after French ruiniforme or its model German ruinenförmig.

Pronunciation

ruiniform

/ruːˈɪnɪfɔːm/