13-letter words containing s, p, a, c, y
- 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.
- speculatively — pertaining to, of the nature of, or characterized by speculation, contemplation, conjecture, or abstract reasoning: a speculative approach.
- sperry univac — (company) One of the divisions of Sperry Corporation at the time that company merged with the Burroughs Corporation to form Unisys Corporation.
- splanchnology — the visceral system
- 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.
- spying charge — an accusation of having taken part in espionage
- stereotypical — a process, now often replaced by more advanced methods, for making metal printing plates by taking a mold of composed type or the like in papier-mâché or other material and then taking from this mold a cast in type metal.
- stock company — Finance. a company or corporation whose capital is divided into shares represented by stock.
- subspeciality — a particular area of expertise within a specialism
- subtropically — in the subtropics
- superactivity — extreme activity; hyperactivity
- superficially — being at, on, or near the surface: a superficial wound.
- superphysical — above or beyond what is physical; hyperphysical.
- swamp cypress — bald cypress.
- sympathectomy — surgery that interrupts a nerve pathway of the sympathetic or involuntary nervous system.
- sympatholytic — opposing the effects of stimulation of the sympathetic nervous system.
- synaposematic — relating to synaposematism
- tachyphylaxis — Medicine/Medical. immediate, temporary immunization against the effects of injection of a toxic extract owing to previous small injections of the same extract.
- thoracoplasty — the operation removing selected portions of the ribs to collapse part of the underlying lung or an abnormal pleural space, usually in the treatment of tuberculosis.
- tracheophytes — any plant of the former division Tracheophyta, comprising all the vascular plants.
- trachycarpous — having rough-skinned fruit.
- trust company — a company or corporation organized to exercise the functions of a trustee, but usually engaging also in other banking and financial activities.
- ultraphysical — extremely physical
- unsympathetic — characterized by, proceeding from, exhibiting, or feeling sympathy; sympathizing; compassionate: a sympathetic listener.
- vinyl plastic — any of various plastics made from polymerized vinyl compounds or copolymers of vinyl and other resins, used in various molded or extruded products, coatings, adhesives, sizes, etc.
- yachtsmanship — The ability or art of being adept at sailing a yacht.