12-letter words containing s, p, r, o
- soil profile — a vertical succession of horizons, commonly lettered A, B, C (beginning at the surface), that have been subjected to soil-forming processes, chiefly leaching and oxidation.
- solar plexus — Also called celiac plexus. Anatomy. a network of nerves situated at the upper part of the abdomen, behind the stomach and in front of the aorta.
- somatopleure — the double layer formed by the association of the upper layer of the lateral plate of mesoderm with the overlying ectoderm, functioning in the formation of the body wall and amnion.
- somatotropin — a hormone secreted by the anterior pituitary gland, that stimulates growth in humans.
- somers point — a town in SE New Jersey.
- song sparrow — a small emberizine songbird, Melospiza melodia, common in North America.
- sophomorical — characteristic of a sophomore
- soporiferous — bringing sleep; soporific.
- soprano clef — a sign locating middle C on the bottom line of the staff.
- soup du jour — the soup featured by a restaurant on a particular day.
- sparcstation — (computer) A family of workstations from Sun Microsystems based on the SPARC architecture. Models include the SPARCStation 1, 1+, SLC, SPARCStation ELC, IPX, SPARCStation 5, SPARCStation 10 and SPARCStation 20.
- sparrow hawk — a small, short-winged European hawk, Accipiter nisus, that preys on smaller birds.
- sparrowgrass — asparagus.
- spatiography — the study of the characteristics of space beyond the atmosphere, including the mapping of the movements of celestial bodies and the recording of electrical, magnetic, and gravitational effects, especially those likely to affect missiles and spacecraft.
- spatter cone — a low, steep-sided volcanic cone built up of droplets or blobs of lava erupted from a fissure or vent.
- speakerphone — a telephone or telephone attachment equipped with both loudspeaker and microphone, thus permitting the instrument to be used without being held.
- special sort — a character, such as an accented letter, that is not a usual member of any font
- specksioneer — a whaler
- spectatorial — a person who looks on or watches; onlooker; observer.
- spectrograph — a spectroscope for photographing or producing a representation of a spectrum.
- spectrometer — an optical device for measuring wavelengths, deviation of refracted rays, and angles between faces of a prism, especially an instrument (prism spectrometer) consisting of a slit through which light passes, a collimator, a prism that deviates the light, and a telescope through which the deviated light is viewed and examined.
- spectrometry — an optical device for measuring wavelengths, deviation of refracted rays, and angles between faces of a prism, especially an instrument (prism spectrometer) consisting of a slit through which light passes, a collimator, a prism that deviates the light, and a telescope through which the deviated light is viewed and examined.
- spectroscope — an optical device for producing and observing a spectrum of light or radiation from any source, consisting essentially of a slit through which the radiation passes, a collimating lens, and an Amici prism.
- spectroscopy — the science that deals with the use of the spectroscope and with spectrum analysis.
- speech organ — any part of the body, as the tongue, velum, diaphragm, or lungs, that participates, actively or passively, voluntarily or involuntarily, in the production of the sounds of speech.
- spermagonium — Botany, Mycology. spermogonium.
- spermatocele — a swelling of the testicle
- spermatocide — spermicide.
- spermatocyte — a male germ cell (primary spermatocyte) that gives rise by meiosis to a pair of haploid cells (secondary spermatocytes) that give rise in turn to spermatids.
- spermatozoid — a motile male gamete produced in an antheridium.
- spermatozoon — one of the minute, usually actively motile gametes in semen, which serve to fertilize the ovum; a mature male reproductive cell.
- spermogonium — one of the cup-shaped or flask-shaped receptacles in which the spermatia of certain fungi and red algae are produced.
- spermophytic — able to produce seed
- sphenography — the art of writing in cuneiform characters.
- sphygmograph — an instrument for recording the rapidity, strength, and uniformity of the arterial pulse.
- sphygmometer — a device which measures the rate of the pulse
- spin control — Slang. an attempt to give a bias to news coverage, especially of a political candidate or event.
- spinning rod — a flexible fishing rod, often made of fiberglass, used with a spinning reel.
- spinsterhood — Disparaging and Offensive. a woman still unmarried beyond the usual age of marrying.
- spiral-bound — having a spiral binding.
- spirochaetal — resulting from spirochaetes
- spit-roasted — cooked on a spit
- spoil ground — an area within a body of water, especially in the sea, where dredged material is deposited.
- spokesperson — a person who speaks for another or for a group.
- sponged ware — spongeware.
- sponsorships — a person who vouches or is responsible for a person or thing.
- sporadically — (of similar things or occurrences) appearing or happening at irregular intervals in time; occasional: sporadic renewals of enthusiasm.
- sporangiolum — a small sporangium
- sporogenesis — the production of spores; sporogony.
- sporophorous — the state of being or functioning as a sporophore