22-letter words containing o, b, t, r, u, s
- underground combustion — Underground combustion is the process of heating oil to allow it to flow more easily and make it easier to recover.
- urban district council — a council of an urban district that, in conjunction with a county council, has responsibilities for local government issues
- volume of distribution — A volume of distribution is the hypothetical volume of body fluid that would be required to dissolve the amount of drug needed to achieve the same concentration in the blood.