15-letter words containing a, s, d, u, l
- sostenuto pedal — a pedal on a grand piano that raises the dampers, allowing the tone to be sustained for those strings struck at the time the pedal is depressed.
- sound as a bell — in perfect condition
- sound-and-light — combining sound effects or music with unusual lighting displays: to promote a product with a spectacular sound-and-light presentation.
- southeastwardly — toward the southeast
- southwestwardly — toward the southwest
- special student — a student who is not seeking a degree but enrols in a course, esp to gain academic credits
- squadron leader — air-force officer
- standard clause — a clause which is inserted as standard into certain types of contracts or agreements
- stannic sulfide — a yellowish or brownish, water-insoluble powder, SnS 2 , usually used suspended in lacquer or varnish for gilding and bronzing metals, wood, paper, etc.; mosaic gold.
- subsidiary cell — Immunology. any of various cells of the immune system that work with T or B cells to initiate a specific immune response.
- sulfanilic acid — a grayish-white, crystalline, slightly water-soluble solid, the para form of C 6 H 7 NO 3 S, used chiefly as an intermediate in the manufacture of dyes.
- sulphurous acid — an unstable acid produced when sulphur dioxide dissolves in water: used as a preservative for food and a bleaching agent. Formula: H2SO3
- summa cum laude — with highest praise: used in diplomas to grant the highest of three special honors for grades above the average.
- summer holidays — the time when children do not go to school in the summer
- superabundantly — very or too abundantly
- superindividual — greater than the individual
- surgical needle — a needle for suturing.
- surrender value — cash value.
- sustained yield — the continuing supply of a natural resource, as timber, through scheduled harvests to insure replacement by regrowth or reproduction.
- thousand island — of or relating to the Thousand Islands or their inhabitants
- thursday island — an island in Torres Strait between NE Australia and New Guinea; part of Queensland: pearl fishing. 1½ sq. mi. (4 sq. km).
- titius-bode law — Bode's law.
- tokelau islands — a group of islands in the S Pacific Ocean belonging to New Zealand. 4 sq. mi. (10 sq. km).
- toughened glass — glass that has been made stronger using chemical or thermal treatments so that it will not break easily
- transindividual — a single human being, as distinguished from a group.
- treacle mustard — a N temperate cruciferous annual plant, Erysimum cheiranthoides, having small yellow flowers. It is a common weed in cultivated ground
- treasure island — (italics) a novel (1883) by R. L. Stevenson.
- tricuspid valve — the valve, consisting of three triangular flaps of tissue between the right auricle and ventricle of the heart, that keeps blood from flowing back into the auricle.
- troubled waters — a confused or chaotic state of affairs: The situation was terrible, but like many politicians he was attracted by troubled waters.
- u-shaped valley — a steep-sided valley caused by glacial erosion
- ultra-modernist — very advanced in ideas, design, or techniques.
- ultrafastidious — extremely fastidious
- ultrasound scan — sonograph examination
- un-considerable — rather large or great in size, distance, extent, etc.: It cost a considerable amount. We took a considerable length of time to decide.
- unadventurously — in an unadventurous manner
- unadvisableness — the quality of being imprudent or not advisable
- unalaska island — a large volcanic island in SW Alaska, in the Aleutian Islands. Length: 120 km (75 miles). Greatest width: about 40 km (25 miles)
- unconsolidation — an act or instance of consolidating; the state of being consolidated; unification: consolidation of companies.
- unconstrainedly — in an unconfined manner
- understandingly — mental process of a person who comprehends; comprehension; personal interpretation: My understanding of the word does not agree with yours.
- undisciplinable — unable to be disciplined or controlled
- unendurableness — the quality or state of being unendurable
- universal donor — a person with blood of group O.
- unskilled labor — work that requires practically no training or experience for its adequate or competent performance.
- vascular bundle — a longitudinal arrangement of strands of xylem and phloem, and sometimes cambium, that forms the fluid-conducting channels of vascular tissue in the rhizomes, stems, and leaf veins of vascular plants, the arrangement varying with the type of plant.
- well-accustomed — customary; usual; habitual: in their accustomed manner.