17-letter words containing n, o, v, s, i
- soil conservation — any of various methods to achieve the maximum utilization of the land and preserve its resources through such controls as crop rotation, prevention of soil erosion, etc.
- squash vine borer — the larva of a clearwing moth, Melittia satyriniformis, that bores into the stems of squash and related plants.
- stellar evolution — the sequence of changes that occurs in a star as it ages
- subclavian groove — either of two grooves in the first rib, one for the main artery (subclavian artery) and the other for the main vein (subclavian vein) of the arm
- superconductivity — the phenomenon of almost perfect conductivity shown by certain substances at temperatures approaching absolute zero. The recent discovery of materials that are superconductive at temperatures hundreds of degrees above absolute zero raises the possibility of revolutionary developments in the production and transmission of electrical energy.
- supervision order — an order by a juvenile court requiring a named probation officer or local-authority social worker to advise, assist, and befriend a child or young person who is the subject of care proceedings, over a period of up to three years
- survivor syndrome — a characteristic group of symptoms, including recurrent images of death, depression, persistent anxiety, and emotional numbness, occurring in survivors of disaster.
- synovial membrane — anatomy: connective tissue
- telephone service — a company or public utility that provides a telephone-operating service
- television lounge — a room in a hotel, guest house, etc where guests may watch television
- television rights — the rights to televise something, such as a sporting event
- television screen — the flat vertical surface in a television set on which pictures are shown
- the tet offensive — an offensive launched in January–February 1968 by the North Vietnamese Army and the Vietcong. Coinciding with the first day of the Tet, it was a surprise attack on South Vietnamese cities, including Saigon
- traffic diversion — a special route arranged for traffic to follow when the normal route cannot be used
- turn-down service — In a hotel, a turn-down service is the preparation of a room for a guest to sleep in by slightly turning back the comforter on the bed, turning down the lights, and so on.
- ultraconservative — extremely conservative, especially in politics.
- unconventionalist — not conventional; not bound by or conforming to convention, rule, or precedent; free from conventionality: an unconventional artist; an unconventional use of material.
- uncooperativeness — working or acting together willingly for a common purpose or benefit.
- vacant possession — ownership of an unoccupied house or property, any previous owner or tenant having departed
- vacuum aspiration — menstrual extraction.
- vehicle emissions — substances emitted from a vehicle as a result of internal combustion
- ventilation shaft — a shaft in a mine, tunnel, or building used for providing ventilation or fresh air
- visible radiation — electromagnetic radiation that causes the sensation of sight; light. It has wavelengths between about 380 and 780 nanometres
- visitation rights — the legal right granted to a divorced or separated parent to visit a child in the custody of the other parent.
- vocational school — a school offering instruction in one or more skilled or semiskilled trades or occupations.
- voice synthesizer — a computer system that is used to artificially produce the human voice
- warsaw convention — a multilateral treaty on aviation set up chiefly to limit air carriers' liability to passengers and shippers on international flights in the event of an accident.
- weeping lovegrass — any grass of the genus Eragrostis, as E. curvula (weeping lovegrass) and E. trichodes (sand lovegrass) cultivated as forage and ground cover.
- wings of the dove — a novel (1902) by Henry James.
- yellowstone river — river flowing from NW Wyo. through Mont. into the Missouri River: 671 mi (1,080 km)