【化】 oil reservoir(sump)
paint; fat; grease; oil
【化】 oil
【医】 elaeo-; eleo-; oil; Ol; olea; oleo-; oleum
antrum; cavity
【医】 cava; cavern; caverna; cavitas; cavitat; cavity; cavum; celio-; chamber
coel-; coelio-; lumen; lumina; space; spatia; spatium