oleothorax
noun
oleo·tho·rax
| \ -ˈthō(ə)r-ˌaks, -ˈthȯ(ə)r-
\
\
plural oleothoraxes
or oleothoraces\ -ˈthōr-ə-ˌsēz, -ˈthȯr-
\
\
Medical Definition of oleothorax
: a state in which oil is present in the pleural cavity usually as a result of injection — compare pneumothorax