13-letter words containing a, p, e, r, s
- space tourism — travel into space for recreational purposes
- spanish cedar — a tropical American tree, Cedrela odorata, of the mahogany family.
- spanish river — a river in S Ontario, Canada, flowing S into the North Channel of Lake Huron. 150 miles (241 km) long.
- sparcsystem 4 — (computer) A computer built with the MicroSPARC ii 70MHz CPU as used in the SPARC 5 Model 70. The SPARCsystem 4 is basically a cheaper, cut-down SPARC 5. It has an 8-bit pixel accelerator instead of the SBus Turbo GX card. Memory expansion is limited to 160 MB. Availability was planned for March/April 1995.
- spark chamber — a device for detecting elementary particles, consisting of a series of charged plates separated by a gas so that the passage of a charged particle causes sparking between adjacent plates.
- spark erosion — a method of machining using a shaped electrode which erodes the workpiece by an electric spark discharge between itself and the workpiece
- spatterdashes — long leather leggings worn in the 18th century, as to protect from mud when riding
- speaking part — a part in which the character speaks scripted dialogue
- spear carrier — a supernumerary in a theatrical or operatic production, as one of a group of soldiers or a member of a crowd; extra.
- spear-thrower — a flexible device for launching a spear, usually a short cord wound around the spear so that when thrown the weapon will rotate in the air.
- special offer — bargain
- special order — A special order is an extra order or an order for an item specially requested by a customer.
- special-order — to obtain by specific individual order: to special-order a dining-room chandelier.
- specrate_fp92 — (benchmark) A benchmark result derived from the results of a set of floating-point benchmarks (the geometric mean of 14 SPEC rates from CFP92) run multiple times simultaneously, which can be used to estimate a machine's overall multi-tasking throughput for floating-point code. It is typically used on multiprocessor machines. SPECrate_fp92 obsoletes SPECfpThruput89.
- spectacularly — of or like a spectacle; marked by or given to an impressive, large-scale display.
- spectatorship — the state of being a spectator
- spectral line — a line in a spectrum due to the absorption or emission of light at a discrete frequency.
- spectral type — a category for classifying a star, as A star or G star, according to features of its spectrum, as its shape as a function of temperature and wavelength and its absorption spectrum, that indicate the surface temperature of the star and the presence of particular atoms or molecules in its outer layers: principal types are spectral types O, B, A, F, G, K, and M.
- spectrography — a spectroscope for photographing or producing a representation of a spectrum.
- speechreading — the act or process of determining the intended meaning of a speaker by utilizing all visual clues accompanying speech attempts, as lip movements, facial expressions, and bodily gestures, used especially by people with impaired hearing.
- speed reading — a method of reading faster than normal, esp by skimming
- speleotherapy — a form of treatment for asthma sufferers that takes place in clinics in disused mines, in which the air is free of pollen, dust mites, and the other irritants that provoke an allergic reaction; used to reduce the risk of heart disease
- sperm washing — a technique that separates sperm from the seminal fluid, used especially for isolating active sperm for artificial insemination.
- spermatangium — the organ that produces spermatia in red algae.
- spermatoblast — a reproductive cell
- spermatogenic — relating to the development of spermatozoa
- spermatophore — a capsule surrounding a mass of spermatozoa, produced by the male of various animal species and transferred to the female.
- spermatophyte — any of the Spermatophyta, a primary division or group of plants comprising those that bear seeds.
- spermatorrhea — abnormally frequent and involuntary nonorgasmic emission of semen.
- spermatotoxic — spermotoxic.
- spermatotoxin — spermotoxin.
- sperry univac — (company) One of the divisions of Sperry Corporation at the time that company merged with the Burroughs Corporation to form Unisys Corporation.
- spiral nebula — (formerly) a spiral galaxy.
- splatter film — a film containing many scenes of violent and gruesome murders.
- spoiler party — a third political party formed to draw votes away from one of the two major parties, thus spoiling its chance of winning an election.
- sports jacket — a jacket, often of textured wool or colorful pattern, with a collar, lapels, long sleeves, and buttons in the front, cut somewhat fuller than the jacket of a business suit, worn with slacks for informal occasions.
- sportsmanlike — a man who engages in sports, especially in some open-air sport, as hunting, fishing, racing, etc.
- spotted adder — milk snake.
- spotted crake — a Eurasian rail, Porzana porzana, of swamps and marshes, having a buff speckled plumage and dark brown wings
- spotter plane — an aircraft used in observing enemy movements or the accuracy of fire on a target
- spread option — spread (def 25b).
- spreadability — capable of being spread; easily spread: a soft, spreadable cheese.
- spreader beam — a crosspiece for spacing the chains or cables hanging from the boom of a crane.
- spring a leak — to develop a leak
- spring beauty — any American spring plant belonging to the genus Claytonia, of the purslane family, especially C. virginica, having an elongated cluster of white flowers tinged with pink.
- spring valley — a city in SW California, near San Diego.
- spring-loaded — (of a machine part) kept normally in a certain position by a spring: a spring-loaded safety valve.
- springboarded — a flexible board, projecting over water, from which divers leap or spring.
- spruce sawfly — any of several sawflies of the family Diprionidae, especially Diprion hercyniae (European spruce sawfly) the larvae of which feed on the foliage of spruce.
- spurge family — the large plant family Euphorbiaceae, characterized by herbaceous plants, shrubs, and trees having milky juice, simple alternate leaves or no leaves, usually petalless flowers often with showy bracts, and capsular fruit, and including cassava, croton, crown-of-thorns, poinsettia, snow-on-the-mountain, spurge, and the plants that produce castor oil, rubber, and tung oil.