11-letter words containing r, e, o, p, s
- spatterwork — a method of decorating whereby ink or another fluid is spattered over a medium
- spectrogram — a representation or photograph of a spectrum.
- spectrology — the study of ghosts, phantoms, or apparitions.
- speculatory — a place suitable for observation
- speech form — linguistic form.
- speedometer — an instrument on an automobile or other vehicle for indicating the rate of travel in miles or kilometers per hour.
- spent force — If you refer to someone who used to be powerful as a spent force, you mean that they no longer have any power or influence.
- sperm count — the number of spermatozoa in an amount of semen, used as an indication of a man's fertility
- sperm donor — a man who supplies sperm to be used in an artificial fertilization process
- spermatoxic — (of a substance) toxic to spermatozoa.
- spermatoxin — a substance toxic to spermatozoa.
- spermatozoa — one of the minute, usually actively motile gametes in semen, which serve to fertilize the ovum; a mature male reproductive cell.
- spermophile — any of various burrowing rodents of the squirrel family, especially of the genus Spermophilus (or Citellus), sometimes sufficiently numerous to do much damage to crops, as the ground squirrels and susliks.
- spermophyte — spermatophyte.
- spermotoxic — (of a substance) toxic to spermatozoa.
- spermotoxin — a substance toxic to spermatozoa.
- spheroidize — to turn or be turned into spheroids
- spherometer — an instrument for measuring the curvature of spheres and curved surfaces.
- spheroplast — a Gram-negative bacterial cell with a cell wall that has been altered or is partly missing, resulting in a spherical shape.
- spice route — an ancient trade route followed by merchants, importers and exporters trading in exotic spices such as cloves and cinnamon
- spider hole — a foxhole with a camouflaged lid or cover in which a sniper hides
- spin bowler — a bowler who specializes in bowling balls with a spinning motion
- spiniferous — (esp of plants) bearing spines or thorns
- spinsterdom — the state of being a spinster
- spiriferous — having a spire or spiral parts.
- spirochaete — any of various spiral-shaped motile bacteria of the family Spirochaetaceae, certain species, as Treponema, Leptospira, and Borrelia, being pathogenic to humans and other animals, and other species being free-living, saprophytic, or parasitic.
- splendorous — brilliant or gorgeous appearance, coloring, etc.; magnificence: the splendor of the palace.
- spoken word — The spoken word is used to refer to language expressed in speech, for example in contrast to written texts or music.
- sponge iron — finely divided, porous iron, reduced from an oxide at a temperature below the melting point.
- sponge tree — huisache.
- spoon bread — Chiefly South Midland and Southern U.S. a baked dish made with cornmeal, milk, eggs, and shortening, served as an accompaniment to meat.
- spore fruit — a spore-bearing structure, as an ascoscarp; sporocarp.
- spore print — the pattern produced by placing the cap of a mushroom on a piece of paper and allowing the spores to fall
- sporiferous — bearing spores.
- sporogenous — of or relating to spores or spore production.
- sports desk — the editorial section of a newspaper, television or radio programme, etc that deals with sports news
- sports page — newspaper page carrying sports results
- sporulative — involving or relating to sporulation
- spot market — a market in which commodities, as grain, gold, or crude oil, are dealt in for cash and immediate delivery (distinguished from futures market).
- spot strike — a labor strike by a local branch of a union.
- spot survey — a survey taken immediately and at random
- spotted ray — any of various species of ray with irregular markings on the back
- springhouse — a small storehouse built over a spring or part of a brook, for keeping such foods as meat and dairy products cool and fresh.
- stauroscope — an optical instrument for studying the crystal structure of minerals under polarized light
- stearoptene — the oxygenated solid part of an essential oil (opposed to eleoptene).
- stenography — the art of writing in shorthand.
- step reebok — a set of aerobic exercises designed to improve the cardiovascular system, which consists of stepping on and off a special box of adjustable height
- step rocket — a multistage rocket that discards burned-out stages.
- stepbrother — one's stepfather's son or stepmother's son by a previous marriage.
- stereograph — a single or double picture for a stereoscope.