17-letter words containing a, c, p, u, l, o
- self-purification — a natural process of purifying, as the ability of a body of water to rid itself of pollutants.
- shuttle diplomacy — diplomatic negotiations carried out by a mediator who travels back and forth between the negotiating parties.
- special education — education that is modified or particularized for those with singular needs, as disabled or maladjusted people, slow learners, or gifted children.
- supercolumniation — the placing of one order of columns above another.
- tactile corpuscle — an oval sense organ made of flattened cells and encapsulated nerve endings, occurring in hairless skin, as the tips of the fingers and toes, and functioning as a touch receptor.
- technical support — an advising and troubleshooting service provided by a manufacturer, typically a software or hardware developer, to its customers, often online or on the telephone.
- thousandths-place — last in order of a series of a thousand.
- topological group — a set that is a group and a topological space and for which the group operation and the map of an element to its inverse are continuous functions.
- tropical aquarium — an aquarium designed for the maintenance and breeding of tropical fish and kept at a suitably warm temperature.
- uncompassionately — having or showing compassion: a compassionate person; a compassionate letter.
- unipalm group plc — (company) A company floated in March 1994.
- upper paleolithic — See under Paleolithic.
- utopian socialism — (sometimes initial capital letter) an economic system based on the premise that if capital voluntarily surrendered its ownership of the means of production to the state or the workers, unemployment and poverty would be abolished.
- wave-cut platform — a flat surface at the base of a cliff formed by erosion by waves
- wearable computer — a small computer that is worn or carried on the body; a wearable computing device: a wrist-worn wearable computer with a head-mounted display.