noun
cave painting
Refers to prehistoric paintings found on cave walls and ceilings, such as those in Lascaux or Altamira.
ラスコーの洞窟壁画は約2万年前のものだ。
The Lascaux cave paintings are about 20,000 years old.
Compound of 洞窟 (dōkutsu, 'cave') and 壁画 (hekiga, 'wall painting').