13-letter words containing c, r, o, s, h
- monostrophics — monostrophic verses
- morphometrics — a technique of taxonomic analysis using measurements of the form of organisms
- musicotherapy — the treatment of mental disorders with music
- myrmecophiles — Plural form of myrmecophile.
- nanochemistry — (chemistry) The synthesis, analysis and characterization of chemical compounds at the nanoscale.
- narcohypnosis — the use of drugs to induce hypnosis
- necrophiliacs — Plural form of necrophiliac.
- nephrectomies — Plural form of nephrectomy.
- non-christian — (of a person, country, etc) not adhering to the Christian faith
- non-spherical — having the form of a sphere; globular.
- nonhistorical — Not based on or drawn from history.
- nonhysterical — not hysterical or funny
- normal school — (formerly) a school offering a two-year course and certification to high-school graduates preparing to be teachers, especially elementary-school teachers.
- novocherkassk — a city in the SW Russian Federation in Europe, NE of Rostov.
- officeholders — Plural form of officeholder.
- offshore dock — a floating dock moored to pilings, dolphins, etc., used for cleaning and repairing medium-sized vessels.
- onychophorans — Plural form of onychophoran.
- onychorrhexis — (pathology) fingernail and toenail brittleness and breakage, such as may be due to excessive strong soap and water exposure, nail polish remover, hypothyroidism, anemia, anorexia nervosa or bulimia, or after oral retinoid therapy.
- opisthobranch — any gastropod mollusk of the order Opisthobranchia, as the sea slugs, sea butterflies, and sea hares, characterized by a vestigial or absent mantle and shell and two pairs of tentacles.
- orchard grass — a weedy grass, Dactylis glomerata, often grown for pastures.
- orchesography — a written study of dancing
- orchestra pit — musicians' seating in front of stage
- orchestra-pit — a group of performers on various musical instruments, including especially stringed instruments of the viol class, clarinets and flutes, cornets and trombones, drums, and cymbals, for playing music, as symphonies, operas, popular music, or other compositions.
- orchestralist — a person who writes or arranges orchestral music
- orchestrating — Present participle of orchestrate.
- orchestration — (uncountable) the arrangement of music for performance by an orchestra.
- orchestrators — Plural form of orchestrator.
- orchidologist — someone who is knowledgeable in orchidology
- orchiectomies — Plural form of orchiectomy.
- ornithischian — any herbivorous dinosaur of the order Ornithischia, having a pelvis resembling that of a bird. Compare saurischian.
- orthosilicate — a silicate mineral
- oscillographs — Plural form of oscillograph.
- oscillography — a device for recording the wave-forms of changing currents, voltages, or any other quantity that can be translated into electric energy, as sound waves.
- outstretching — Present participle of outstretch.
- overachievers — Plural form of overachiever.
- overstretched — to stretch excessively.
- oystercatcher — any of several long-billed wading birds of the genus Haematopus that have chiefly black-and-white plumage and that feed on oysters, clams, mussels, etc.
- parapsychosis — an abnormal psychosis
- past historic — the simple past
- petrophysical — relating to the analysis of the constitution and characteristics of rocks
- pharmacognosy — materia medica (def 2).
- pharyngoscope — an instrument for inspecting the pharynx.
- pharyngoscopy — an examination by means of a pharyngoscope.
- photochromism — the reversible transformation of something's colour due to exposure to electromagnetic radiation such as sunlight
- photocomposer — a machine for setting type photographically.
- physharmonica — a keyboard musical instrument fitted with free reeds, and which is an early form of harmonium
- physiographic — the science of physical geography.
- polished rice — white rice polished or buffed by leather-covered cylinders during processing.
- porcupinefish — any of several fishes of the family Diodontidae, especially Diodon hystrix, of tropical seas, capable of inflating the body with water or air until it resembles a globe, with erection of the long spines covering the skin.
- prague school — a school of linguistics emphasizing structure, active in the 1920s and 1930s.