12-letter words containing d, i, r, t
- ninth-grader — a student in their ninth year at school
- nitric oxide — a colorless, slightly water-soluble gas, NO, formed by the action of dilute nitric acid on copper, and by the direct combination of atmospheric oxygen and nitrogen at the high temperatures of an electric arc: an intermediate in the manufacture of nitric acid.
- nitrogenized — Treated with nitrogen or a nitrogen compound.
- nitrous acid — an acid, HNO 2 , known only in solution.
- non-industry — the aggregate of manufacturing or technically productive enterprises in a particular field, often named after its principal product: the automobile industry; the steel industry.
- non-resident — not resident in a particular place.
- nondescripts — Plural form of nondescript.
- nondirective — Not directive.
- noneditorial — not relating to an editor or an editorial
- nonirrigated — not irrigated; dry
- nonmotorized — not equipped with a motor
- nonresidents — Plural form of nonresident.
- nonsteroidal — of or relating to a substance that is not a steroid but has certain similar physiological effects.
- nonvitrified — Not converted into glass.
- north island — the northernmost principal island of New Zealand. 44,281 sq. mi. (114,690 sq. km).
- north riding — a former administrative division of Yorkshire, in N England, now part of North Yorkshire, Cleveland, and Durham.
- notice board — bulletin board for displaying public messages
- noticeboards — Plural form of noticeboard.
- obedientiary — The holder of a monastic rank or office below that of superior.
- off the grid — not using any of the services, such as bank accounts, public utilites, etc, that allow a person's activities to be monitored by the authorities
- oil industry — petroleum-processing business
- old favorite — If you refer to something as an old favorite, you mean that it has been in existence for a long time and everyone knows it or likes it.
- open verdict — law: coroner's jury finding
- orbital road — a highway that circles a metropolitan area; ring road
- orchidectomy — orchiectomy.
- ornithomimid — (zoology) Any member of the Ornithomimidae.
- orthodontics — the branch of dentistry dealing with the prevention and correction of irregular teeth, as by means of braces.
- orthodontist — the branch of dentistry dealing with the prevention and correction of irregular teeth, as by means of braces.
- orthodromics — the act or art of sailing on a great circle
- 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.
- orthopedical — (American spelling) Alternative form of orthopaedical.
- orthopteroid — (zoology) Any of the insects historically included in the order Orthoptera, including the cockroaches, earwigs, praying mantises, etc.
- orthovanadic — relating to orthovanadates
- outside work — work done off the premises of a business
- outsider art — art produced by untutored artists working by themselves and for themselves
- outsiderness — The state or condition of being an outsider.
- outspreading — Present participle of outspread.
- over-excited — If you say that someone is over-excited, you mean that they are more excited than you think is desirable.
- overdelicate — extremely or excessively delicate: an overdelicate digestive system.
- overdiscount — to discount excessively
- overdominant — excessively dominant
- overdrafting — the removal of more water from ground and surface basins than is replaced by rain and melting snow.
- overdramatic — of or relating to the drama.
- overfatigued — excessively fatigued
- overidentify — to identify with someone else to an excessive degree
- overmedicate — to treat with medicine or medicaments.
- oversedation — the calming of mental excitement or abatement of physiological function, especially by the administration of a drug.
- overstrained — exerted, taxed, or used to an excessive extent
- overutilized — to put to use; turn to profitable account: to utilize a stream to power a mill.