11-letter words containing d, o, a, n
- nostradamus — (Michel de Nostredame) 1503–66, French astrologer.
- noticeboard — Alternative spelling of notice board.
- notochordal — Of or pertaining to the notochord.
- nucleolated — containing a nucleolus or nucleoli.
- occidentals — Plural form of occidental.
- octahedrons — Plural form of octahedron.
- octandrious — having eight stamens.
- octanedioic — designating a type of acid found in suberin and castor oil
- odaxelagnia — (rare) A paraphilia in which biting or being bitten leads to sexual arousal.
- odd man out — a method of selecting or eliminating a person from a group, as by matching coins, especially in preparation for playing a game.
- odd-job man — An odd-job man is a man who is paid to do various jobs such as cleaning or repairing things, usually in someone's home.
- odd-pinnate — pinnate with an odd terminal leaflet.
- odonatology — the study of insects, such as dragonflies, that belong to the zoological group Odonata
- odontoblast — one of a layer of cells lining the pulp cavity of a tooth, from which dentin is formed.
- odontograph — an instrument for laying out the forms of gear teeth or ratchets.
- odontopathy — (pathology) Any disease that affects the teeth.
- odynophagia — Severe pain in mouth or esophagus when attempting to swallow.
- off-roading — driving on unmade terrain
- offhandedly — cavalierly, curtly, or brusquely: to reply offhand.
- old frisian — the Frisian language before c1500. Abbreviation: OFris.
- old iranian — any of the Iranian languages spoken or written until the first century a.d.
- old italian — the Italian language of the 10th to the 14th centuries. Abbreviation: OIt.
- old persian — an ancient West Iranian language attested by cuneiform inscriptions. Abbreviation: OPers.
- old russian — Russian as used in documents before 1600. Abbreviation: ORuss.
- old spanish — the Spanish language of the 12th to the 16th centuries. Abbreviation: OSp.
- oligodontia — an abnormal condition in which fewer than the normal number of teeth develop.
- ombudswoman — a woman employed to investigate complaints against government or institutional officials, employers, etc.
- on a downer — If you are on a downer, you are feeling depressed and without hope.
- on one hand — from one point of view
- on stand-by — in a state of readiness for action or use
- on the road — a novel (1957) by Jack Kerouac.
- one and all — being or amounting to a single unit or individual or entire thing, item, or object rather than two or more; a single: one woman; one nation; one piece of cake.
- one old cat — a form of baseball in which there is a home plate and one other base, and in which a player remains at bat and scores runs by hitting the ball and running to the base and back without being put out.
- oneida lake — a lake in central New York. 20 miles (32 km) long; 5 miles (8 km) wide.
- oneirodynia — restless, disturbed sleep, characterized by nightmares and sleepwalking
- open dating — the practice of putting a freshness date on food packages.
- open-handed — generous; liberal: openhanded hospitality.
- openhearted — Frank and candid.
- opinionated — obstinate or conceited with regard to the merit of one's own opinions; conceitedly dogmatic.
- ordainments — Plural form of ordainment.
- ordeal bean — Calabar bean.
- ordinariate — Roman Catholic Church. (formerly) a province in which the faithful of an Eastern rite were under the rule of a prelate of their rite who had no territorial jurisdiction.
- ordinations — Plural form of ordination.
- organ donor — someone who has donated or who has indicated willingness to donate an organ
- orland park — a town in NE Illinois.
- orphan drug — Pharmacology. a drug that remains undeveloped or untested or is otherwise neglected because of limited potential for commercial gain.
- orthodontal — the branch of dentistry dealing with the prevention and correction of irregular teeth, as by means of braces.
- orthodontia — orthodontics.
- out of hand — the terminal, prehensile part of the upper limb in humans and other primates, consisting of the wrist, metacarpal area, fingers, and thumb.
- out-and-out — complete; total; thoroughgoing: an out-and-out lie.