oil-drop
noun
1A drop of oil or lipid.
2Attributive denoting an experimental method of measuring the charge of the electron by means of the motion of electrically charged oil droplets.
Origin
Mid 19th century; earliest use found in Philosophical Transactions of the Royal Society of London.
- fall (or drop, or sink, etc.) to one's knees
- fall (or get) into the wrong hands
- fall out
- fallout
- fallout shelter
- fall over oneself to do something
- fallow
- fallow deer
- fallowness
- fall prey to
- fall prey to (also be or become prey to)
- Fall River
- fall short (of)
- fall through
- fall to
- fall to pieces
- fall to someone's lot
- fall victim to
- Falmouth
- false
- false acacia
- false alarm
- false arrest
- false bedding
- false bottom