15-letter words containing u, d, a, l
- self-adjustment — adjustment of oneself or itself, as to the environment.
- self-authorized — given or endowed with authority: an authorized agent.
- self-inductance — inductance inducing an electromotive force in the same circuit in which the motivating change of current occurs, equal to the number of flux linkages per unit of current.
- self-infatuated — to inspire or possess with a foolish or unreasoning passion, as of love.
- self-inoculated — to implant (a disease agent or antigen) in a person, animal, or plant to produce a disease for study or to stimulate disease resistance.
- semi-industrial — of, pertaining to, of the nature of, or resulting from industry: industrial production; industrial waste.
- senkaku islands — a group of uninhabited islets in the East China Sea; claimed by China and Japan
- shalosh seudoth — the last of the three prescribed Sabbath meals, taken after Minhah and before the evening service.
- shoulder charge — an instance of a player charging into another so that there is contact between their shoulders (permissible in some circumstances)
- shoulder season — a travel season between peak and off-peak seasons, especially spring and fall, when fares tend to be relatively low.
- shoulder weapon — a firearm that is fired while being held in the hands with the butt of the weapon braced against the shoulder.
- silver quandong — an Australian tree, Elaeocarpus grandis: family Elaeocarpaceae
- sled cultivator — go-devil (def 5).
- sodium chlorate — a colorless, water-soluble solid, NaClO 3 , cool and salty to the taste, used chiefly in the manufacture of explosives and matches, as a textile mordant, and as an oxidizing and bleaching agent.
- sodium ethylate — a white, hygroscopic powder, C 2 H 5 ONa, that is decomposed by water into sodium hydroxide and alcohol: used chiefly in organic synthesis.
- sodium silicate — a substance having the general formula, Na2O.xSiO2, where x varies between 3 and 5, existing as an amorphous powder or present in a usually viscous aqueous solution
- sodium sulphate — a solid white substance that occurs naturally as thenardite and is usually used as the white anhydrous compound (salt cake) or the white crystalline decahydrate (Glauber's salt) in making glass, detergents, and pulp. Formula: Na2SO4
- 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.
- talcum (powder) — a powder for the body and face made of powdered, purified talc, usually perfumed
- tall meadow rue — a meadow rue, Thalictrum polygamum.
- the daily round — the usual activities of one's day
- 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
- treacle pudding — a sponge cake with syrup on top
- 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.