17-letter words containing s, p, a, c, y
- spectrum analyser — an instrument that splits an input waveform into its frequency components, which are then displayed
- 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.
- spongy parenchyma — the lower layer of the ground tissue of a leaf, characteristically containing irregularly shaped cells with relatively few chloroplasts and large intercellular spaces.
- st. crispin's day — October 25: anniversary of the Battle of Agincourt (1415).
- steamship company — a company which has a fleet of steamships
- stray capacitance — undesired capacitance in equipment, occurring between the wiring, between the wiring and the chassis, or between components and the chassis
- superaerodynamics — the branch of aerodynamics that deals with gases at very low densities.
- sympathetic magic — magic predicated on the belief that one thing or event can affect another at a distance as a consequence of a sympathetic connection between them.
- uncompassionately — having or showing compassion: a compassionate person; a compassionate letter.
- unsympathetically — in a manner that is not characterized by feeling or showing sympathy
- varix lymphaticus — a similar condition affecting an artery or lymphatic vessel
- vasovagal syncope — a faint brought on by excessive activity of the vagus nerve, causing the heart to slow and the blood pressure to fall. It can be caused by fear, choking, or stomach cramps and has no lasting effects
- walleye surfperch — a common black and silvery surfperch (Hyperprosopon argenteum) found off the coast of California
- zygomatic process — any of several bony processes that articulate with the cheekbone.