21-letter words containing d, o, p, e, n, a
- sanitation department — the department of local government responsible for collecting and disposing of refuse
- sao bernardo do campo — a city in SE Brazil, SE of São Paulo.
- sao tome and principe — Democratic Republic of, a republic in W Africa, comprising the islands of São Tomé and Príncipe, in the Gulf of Guinea, N of the equator: a former overseas province of Portugal; gained independence in 1975. 372 sq. mi. (964 sq. km). Capital: São Tomé.
- sheppard's correction — a method of correcting the bias in standard deviations and higher moments of distributions that arises from grouping values of the variable.
- sinusoidal projection — an equal-area projection in which parallels are straight lines spaced at regular intervals, the central meridian is a straight line one-half the length of the equator, and the other meridians are curves symmetrical to the central meridian.
- snappy video snapshot — (hardware) (registered trademark) A frame grabber for the IBM PC designed and marketed by Play, Inc..
- special correspondent — a journalist who covers stories firsthand from a war zone
- spherical coordinates — Usually, spherical coordinates. any of three coordinates used to locate a point in space by the length of its radius vector and the angles this vector makes with two perpendicular polar planes.
- steady-state response — A steady-state response is the behavior of a circuit after a long time when steady conditions have been reached after an external excitation.
- step-down transformer — a device that transfers an alternating current from one circuit to one or more other circuits with a decrease of voltage
- stock list department — (in an American stock exchange) the department dealing with monitoring compliance with its listing requirements and rules
- student participation — the extent to which students participate or involve themselves in a class, course, etc
- the antipodes islands — a group of small uninhabited islands in the South Pacific, southeast of and belonging to New Zealand. Area: 62 sq km (24 sq miles)
- thermal decomposition — Thermal decomposition is the process in which a chemical species breaks down when its temperature is increased.
- to play second fiddle — If you play second fiddle to someone, your position is less important than theirs in something that you are doing together.
- up close and personal — face to face, intimately
- up hill and down dale — strenuously and persistently
- whip-and-tongue graft — a graft prepared by cutting both the scion and the stock in a sloping direction and inserting a tongue in the scion into a slit in the stock.
- white-crowned sparrow — a North American sparrow, Zonotrichia leucophrys, having black and white stripes on the head.
- wholesale price index — an indicator of price changes in the wholesale market
- xeroderma pigmentosum — a rare inherited disease characterized by sensitivity to ultraviolet light, exposure resulting in lesions and tumors of the skin and eyes.