grey oil
(US gray oil) now historical
noun
Any of several medicinal preparations containing mercury and one or more oily substances, typically administered by injection in the treatment of syphilis.
Origin
Late 19th century. After scientific Latin oleum cinereum.
- quarter point
- quarter pole
- quarter post
- quarter-pounder
- quarter-race
- quarter-racer
- quarter-racing
- quarter rack
- quarter-repeater
- quarter-rest
- quarter-road
- quarter-round
- quarter-sack
- quarter-saw
- quarter screw
- quarter seal
- quarter section
- quarter sessions
- quarter-sight
- quarter-sling
- quarter snail
- quarter-space
- quarter square
- quarterstaff
- quarter-stake