23-letter words containing v, o, l, a
- preferred provider plan — A preferred provider plan is a health insurance plan in the U.S. written by an organization of hospitals and physicians who provide services to clients of a particular insurance company.
- presidential government — a system of government in which the powers of the president are constitutionally separate from those of the legislature.
- private limited company — a company whose shares can be bought by the public
- quantum flavourdynamics — a gauge theory of the electromagnetic and weak interactions
- refuse disposal service — a place or facility where rubbish and waste can be disposed
- regressive assimilation — assimilation in which a following sound has an effect on a preceding one, as in pronouncing have in have to as [haf] /hæf/ (Show IPA) influenced by the voiceless (t) in to.
- relative molecular mass — the sum of all the relative atomic masses of the atoms in a molecule; the ratio of the average mass per molecule of a specified isotopic composition of a substance to one-twelfth the mass of an atom of carbon-12
- relative sunspot number — a number indicating the degree of sunspot activity on the sun as a factor of observer idiosyncrasies, the number of sunspot groups, and the number of individual sunspots.
- relativity of knowledge — the theory that all knowledge is relative to the mind, or that things can be known only through their effects on the mind, and that consequently there can be no knowledge of reality as it is in itself
- reverse polish notation — postfix notation
- roentgen equivalent man — the dose of ionizing radiation that produces the same effect in man as one roentgen of x- or gamma-radiation
- self-addressed envelope — addressed to self
- seneca falls convention — a women's rights convention held at Seneca Falls, New York, in 1848, organized by Elizabeth Cady Stanton and Lucretia Mott.
- separation of variables — a grouping of the terms of an ordinary differential equation so that associated with each differential is a factor consisting entirely of functions of the independent variable appearing in the differential.
- software developers kit — (jargon, product) (SDK, or "Software Development Kit") Software provided by a software vendor to allow their products to be used with those of other software vendors.
- soviet of nationalities — the legislature of the former Soviet Union and its successor states, consisting of an upper house (Soviet of the Union or Council of the Union) whose delegates are elected on the basis of population, and a lower house (Soviet of Nationalities or Council of Nationalities) whose delegates are elected to represent the various nationalities.
- survival of the fittest — (not in technical use) natural selection.
- sustainable development — supporting economy via renewable resources
- talk/speak of the devil — People say speak of the devil, or in British English talk of the devil, if someone they have just been talking about appears unexpectedly.
- the royal naval reserve — the volunteer reserve force of the Royal Navy in the United Kingdom
- to have a police record — If you say that somebody has a police record, you mean that they have committed a crime or crimes and the police have a record of this.
- to have feelings for sb — to be emotionally or sexually attracted to
- to have your hands full — If you have your hands full with something, you are very busy because of it.
- to turn over a new leaf — If you say that you are going to turn over a new leaf, you mean that you are going to start to behave in a better or more acceptable way.
- to win the popular vote — to get a majority as regards the votes cast by individual voters
- topological equivalence — the property of two topological spaces such that there is a homeomorphism from one to the other.
- two gentlemen of verona — a comedy (1594–95) by Shakespeare.
- valera y alcala galiano — Juan [hwahn] /ʰwɑn/ (Show IPA), 1824–1905, Spanish novelist, critic, diplomat, and statesman.
- van der waals' equation — an equation of state relating the pressure, volume, and absolute temperature of a gas, taking into account the finite size of the molecules and the attractive force between them.
- variable contrast paper — printing paper in which the contrast of the image is controlled by the color of the printing light.
- velocity of circulation — the frequency with which a single unit of currency or the total money supply turns over within the economy in a given year.
- vestibulocochlear nerve — either one of the eight pairs of cranial nerves that supply the cochlea and semicircular canals of the internal ear and contribute to the sense of hearing
- virtual device location — (Or "Virtual Address") The address of a device (e.g. disk, printer, terminal) belonging to a "guest" operating system. Such an address is mapped to a physical device. VM may remap several virtual disks to different parts of a single physical disk.
- virtual loadable module — (networking) (VLM) Novell's term for software modules that can be dynamically loaded to extend the functionality of the "VLM" NetWare Requester for MS-DOS that became standard beginning with Novell NetWare 4.
- virtual private network — (networking, security) (VPN) The use of encryption in the lower protocol layers to provide a secure connection through an otherwise insecure network, typically the Internet. VPNs are generally cheaper than real private networks using private lines but rely on having the same encryption system at both ends. The encryption may be performed by firewall software or possibly by routers. Link-level (layer 2 and 3) encryption provides extra protection by encrypting all of each datagram except the link-level information. This prevents a listener from obtaining information about network structure. While link-level encryption prevents traffic analysis (a form of attack), it must encrypt/decrypt on every hop and every path. Protocol-level encryption (layer 3 and 4) encryption encrypts protocol data but leaves protocol and link headers clear. While protocol-level encryption requires you to encrypt/decrypt data only once, and it encrypts/decrypts only those sessions that need it, headers are sent as clear text, allowing traffic analysis. Application (layer 5 up) encryption is based on a particular application and requires that the application be modified to incorporate encryption.
- viscount horatio nelson — Viscount Horatio, 1758–1805, British admiral.
- volumetric displacement — the volume of air per revolution that passes through a mechanical pump when the pressure at the intake and the exhaust is the same as that of the atmosphere
- voyageurs national park — a national park in N Minnesota. 343 sq. mi. (888 sq. km).
- willow-leaved jessamine — a Chilean shrub, Cestrum parqui, of the nightshade family, having willowlike leaves and clusters of whitish or yellowish flowers that are very fragrant at night.
- wind cave national park — a national park in SW South Dakota. 41½ sq. mi. (107 sq. km).