17-letter words containing f, a, v, i
- protective tariff — a tariff levied on imports to protect the domestic economy rather than to raise revenue
- rift valley fever — a highly infectious viral disease of humans and animals, transmitted by mosquitoes and other insects, occurring in Africa and characterized in humans by headache, fever, eye discomfort, and muscle aches, progressing in some cases to encephalitis, blindness, or internal bleeding.
- self-belay device — (in climbing) a device used to pay out a safety rope as required
- self-conservation — the act of conserving; prevention of injury, decay, waste, or loss; preservation: conservation of wildlife; conservation of human rights.
- self-preservation — preservation of oneself from harm or destruction.
- sinus of valsalva — any of the pouches of the aorta and the pulmonary artery opposite the flaps of the semilunar valves into which blood returning to the heart flows, closing the valves.
- traffic diversion — a special route arranged for traffic to follow when the normal route cannot be used
- traffic violation — driving offence
- vanilla-flavoured — having been flavoured with vanilla extract or essence
- veiltail goldfish — an artificially bred, indoor variety of goldfish, usually golden or calico and of a spheroid shape, having a fully divided, drooping tail fin exceeding the body in length.
- ventilation shaft — a shaft in a mine, tunnel, or building used for providing ventilation or fresh air
- vibrofluidization — Vibrofluidization is when vibration is used to make particles move in a fluidized bed.
- waiver of premium — a provision in a policy establishing specific conditions under which the policy will be kept in force without the policyholder's being required to continue to pay premiums.
- zone of avoidance — the area of the sky in the plane of the Milky Way where interstellar dust obscures visible light so that no distant galaxies can be observed.