19-letter words containing s, e, m, i, c, y
- segmentation cavity — blastocoel.
- semidetached binary — a pair of stars that are so close together that mass transfer occurs from one to the other
- simple carbohydrate — a carbohydrate, as glucose, that consists of a single monosaccharide unit.
- smokestack industry — A smokestack industry is a traditional industry such as heavy engineering or manufacturing, rather than a modern industry such as electronics.
- sodium hypochlorite — a pale-green, crystalline compound, NaOCl, unstable in air, soluble in cold water, decomposes in hot water: used as a bleaching agent for paper and textiles, in water purification, in household use, and as a fungicide.
- spherical astronomy — the branch of astronomy dealing with the determination of the positions of celestial bodies on the celestial sphere.
- stationers' company — a company or guild of the city of London composed of booksellers, printers, dealers in writing materials, etc., incorporated in 1557.
- subsistence economy — an economy which produces only enough output for its own consumption and does not attempt to accumulate wealth
- superiority complex — an exaggerated feeling of one's own superiority.
- sympathetic contact — behavior toward an individual based on the individual's personal makeup rather than on his or her group membership.
- synchronous machine — an alternating-current machine in which the average speed of normal operation is exactly proportional to the frequency of the system to which it is connected.
- the eroica symphony — Symphony No. 3 in E flat major by Ludwig van Beethoven
- ultramicrochemistry — the branch of microchemistry dealing with minute quantities of material weighing one microgram or less.
- volumetric analysis — determination of the concentration, by volume, of a substance in a solution, as by titration.