23-letter words containing a, d, v, n
- 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
- residual current device — a circuit-breaking device installed in electrical equipment to protect the operator from electrocution
- secondary seventh chord — a chord formed by superposition of three thirds upon any degree of the scale except the dominant.
- self-addressed envelope — addressed to self
- severinus de monzambano — Samuel von [zah-moo-uh l fuh n] /ˈzɑ mu əl fən/ (Show IPA), ("Severinus de Monzambano") 1632–94, German jurist and historian.
- sustainable development — supporting economy via renewable resources
- swine vesicular disease — a viral disease of swine characterized by vesicular lesions on the feet, legs, snout, and tongue
- the haves and have-nots — the people who are very wealthy and the people who are very poor
- to drive a hard bargain — If people drive a hard bargain, they argue with determination in order to achieve a deal which is favourable to themselves.
- to have an axe to grind — If someone has an axe to grind, they are doing something for selfish reasons.
- to have your hands full — If you have your hands full with something, you are very busy because of it.
- tongue-and-groove joint — a long, narrow cut or indentation in a surface, as the cut in a board to receive the tongue of another board (tongue-and-groove joint) a furrow, or a natural indentation on an organism.
- van de graaff generator — a device for producing high-voltage static electricity.
- 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.
- ventricular tachycardia — a cardiac arrhythmia in which the muscles of the ventricles contract irregularly in a rapid, uncoordinated manner, impairing the normal pumping of blood.
- veterans administration — the federal agency charged with administering benefits provided by law for veterans of the armed forces. Abbreviation: VA, V.A.
- 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.
- visual display terminal — video display terminal. Abbreviation: VDT.
- 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
- voter registration card — a card that enables a person to register in order to vote
- 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).