17-letter words containing a, p, i, r, y
- spastic paralysis — a condition in which the muscles affected are marked by tonic spasm and increased tendon reflexes.
- spatial frequency — the measure of fine detail in an optical image in terms of cycles per millimetre
- spectroscopically — an optical device for producing and observing a spectrum of light or radiation from any source, consisting essentially of a slit through which the radiation passes, a collimating lens, and an Amici prism.
- spectrum analysis — the determination of the constitution or condition of bodies and substances by means of the spectra they produce.
- spherical polygon — a closed figure formed by arcs of great circles on a spherical surface.
- spiny-headed worm — any of a small group of endoparasites of the phylum Acanthocephala, as larvae parasitic in insects and crustaceans and as adults in various vertebrates.
- split keyboarding — the act or practice of editing data from one terminal on another terminal
- split personality — multiple personality.
- spread your wings — if you spread your wings, you do something new and rather difficult or move to a new place, because you feel more confident in your abilities than you used to and you want to gain wider experience
- st. crispin's day — October 25: anniversary of the Battle of Agincourt (1415).
- stereolithography — a process for creating three-dimensional objects using a computer-controlled laser to build up the required structure, layer by layer, from a liquid photopolymer that solidifies.
- stray capacitance — undesired capacitance in equipment, occurring between the wiring, between the wiring and the chassis, or between components and the chassis
- stymphalian birds — a flock of predacious birds of Arcadia that were driven away and killed by Hercules as one of his labors.
- superaerodynamics — the branch of aerodynamics that deals with gases at very low densities.
- supervisory board — a board of management of which nonmanagerial workers are members, having supervisory powers over some aspects of management decision-making
- terminal capacity — The terminal capacity is the volume which can be stored in a terminal (= building or area with tanks).
- ternary operation — an operation in a mathematical system by which three elements are combined to yield a single result.
- tertiary syphilis — the third stage of syphilis, characterized by involvement of the internal organs, especially the brain, spinal cord, heart, and liver.
- to play it by ear — If you play it by ear, you decide what to say or do in a situation by responding to events rather than by following a plan which you have decided on in advance.
- to play with fire — If you say that someone is playing with fire, you mean that they are doing something dangerous that may result in great harm for them and cause many problems.
- trick photography — photography that creates an illusion
- tympanic membrane — eardrum.
- unconformity trap — An unconformity trap is a hydrocarbon trap where the closure is made by an unconformity (= a formation of rock layers which represents a gap in the geological record).
- unify corporation — (company) Developers of the Unify relational database. At one time, before Sybase, they were a competitor of Oracle, et al.
- unproportionately — proportioned; being in due proportion; proportional.
- varix lymphaticus — a similar condition affecting an artery or lymphatic vessel
- video disk player — a device that reads the information on a video disc
- visually impaired — (of a person) having reduced vision so severe as to constitute a handicap.
- youth programming — the creation and scheduling of television programmes specifically aimed at young people
- zoogeographically — In a zoogeographical way.
- zygomatic process — any of several bony processes that articulate with the cheekbone.