12-letter words containing r, o, s, h, a
- morphographs — Plural form of morphograph.
- morphosyntax — the study of the morphological and syntactic properties of linguistic or grammatical units.
- morris chair — a large armchair having an adjustable back and loose, removable cushions.
- mother's day — a day, usually the second Sunday in May, set aside in honor of mothers.
- motherboards — Plural form of motherboard.
- nasotracheal — (anatomy) Of or relating to the nose and trachea.
- necrophagous — That eats dead or decaying animal flesh.
- neuropathies — Plural form of neuropathy.
- neuropathist — a specialist in treating diseases of the nervous system; a neurologist
- nilo-saharan — a family of African languages, including the Central and Eastern Sudanic groups as well as Kanuri, Songhai, and other languages, spoken from the Sahara southward to the Democratic Republic of the Congo and Tanzania.
- noncrushable — (of a container, material, etc) not easily crushed
- nonhazardous — Not hazardous; safe.
- nonspherical — not spherical
- north island — the northernmost principal island of New Zealand. 44,281 sq. mi. (114,690 sq. km).
- north-easter — New England and South Atlantic States. a wind or gale from the northeast.
- northeastern — Of, related to, located in, or from the northeast.
- np-hilarious — (humour) An algorithm whose complexity is a joke, either literally, as in BogoSort, or metaphorically.
- ochlocracies — Plural form of ochlocracy.
- octastrophic — having or containing eight verses or strophes
- odd-man rush — an attacking move when the defence is outnumbered by the opposing team
- on shipboard — on board a ship
- on the cards — likely
- open slather — to spread or apply thickly: to slather butter on toast.
- operatorship — (in the oil and gas industries) the right to operate a well, field, or other oil source.
- ophiolatrous — of, relating to, or practising snake-worshipping
- opisthograph — a manuscript, parchment, or book having writing on both sides of the leaves.
- oral history — information of historical or sociological importance obtained usually by tape-recorded interviews with persons whose experiences and memories are representative or whose lives have been of special significance.
- orchard bush — open savanna country with occasional trees and scrub, as found north of the W African forest belt
- orchestrally — In an orchestral manner.
- orchestrated — Simple past tense and past participle of orchestrate.
- orchestrates — Third-person singular simple present indicative form of orchestrate.
- orchestrator — One who orchestrates.
- orchidaceous — belonging to the plant family Orchidaceae.
- orichalceous — relating to or resembling orichalc
- oropharynxes — Plural form of oropharynx.
- orthoclastic — (of a crystal) having cleavages at right angles to each other.
- orthopaedics — (used with a singular verb) the medical specialty concerned with correction of deformities or functional impairments of the skeletal system, especially the extremities and the spine, and associated structures, as muscles and ligaments.
- orthopaedist — Alternative spelling of orthopedist.
- orthopterans — Plural form of orthopteran.
- oscillograph — 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.
- overemphasis — excessive or undue emphasis.
- overpurchase — to acquire by the payment of money or its equivalent; buy.
- overrashness — the act of being overrash
- pachycarpous — having a thick pericarp
- pachydermous — any of the thick-skinned, nonruminant ungulates, as the elephant, hippopotamus, and rhinoceros.
- parachronism — a chronological error in which a person, event, etc., is assigned a date later than the actual one.
- paragnathous — (of certain vertebrates) having the upper and lower jaws of equal length
- paramorphism — the process by which a paramorph is formed.
- paranthropus — (sometimes initial capital letter) a member of the former genus Paranthropus.
- paraphimosis — inability to retract the penis into the prepuce as a result of narrowing of the prepuce