13-letter words containing a, n, d, o, u, i
- nonindividual — an entity that is not an individual
- nonindustrial — of, pertaining to, of the nature of, or resulting from industry: industrial production; industrial waste.
- nucleocapsids — Plural form of nucleocapsid.
- null and void — without value, effect, consequence, or significance.
- old bulgarian — the Bulgarian language of the Middle Ages.
- ombudsmanship — The position or office of an ombudsman.
- onus probandi — the burden of proof.
- optical sound — sound recorded on and subsequently played back from an optical or photographic soundtrack, as opposed to a magnetic soundtrack.
- organ-builder — a maker of organs
- outdistancing — Present participle of outdistance.
- outrecuidance — (archaic) Presumption, arrogance, self-conceit.
- outstandingly — prominent; conspicuous; striking: an outstanding example of courage.
- overeducation — the act or process of imparting or acquiring general knowledge, developing the powers of reasoning and judgment, and generally of preparing oneself or others intellectually for mature life.
- pamlico sound — a sound between the North Carolina mainland and coastal islands.
- pandiculation — the act of stretching oneself.
- platitudinous — characterized by or given to platitudes.
- point d'appui — a support or prop
- polybutadiene — a rubberlike polymer of butadiene blended with other synthetics to replace natural rubber in tires.
- post-freudian — of or relating to Sigmund Freud or his doctrines, especially with respect to the causes and treatment of neurotic and psychopathic states, the interpretation of dreams, etc.
- pre-education — the act or process of imparting or acquiring general knowledge, developing the powers of reasoning and judgment, and generally of preparing oneself or others intellectually for mature life.
- prejudication — the act of judging beforehand
- public domain — the status of a literary work or an invention whose copyright or patent has expired or that never had such protection.
- quadraphonics — high-fidelity sound reproduction involving signals transmitted through four different channels.
- quadrillionth — a cardinal number represented in the U.S. by 1 followed by 15 zeros, and in Great Britain by 1 followed by 24 zeros.
- quadriphonics — quadraphony.
- quartodeciman — one of a group of early Christians who observed Easter on the day of the Jewish Passover regardless of whether or not it was Sunday
- quindecagonal — (geometry) Shaped like a quindecagon; fifteen-sided.
- radioactinium — the radioactive isotope of thorium having a mass number 227 and a half-life of 18.8 days. Symbol: RdAc, Th 227.
- reading group — a group of people who meet regularly to discuss a book that they have all read
- redial button — a button on a telephone, allowing the user to dial a number again
- reduplication — the act of reduplicating; the state of being reduplicated.
- rough diamond — gemstone: uncut diamond
- ruggedization — the act or process of making something rugged
- running board — a small ledge, step, or footboard, formerly beneath the doors of an automobile, to assist passengers entering or leaving the car.
- selenous acid — a colorless, transparent, crystalline powder, H2SeO3, soluble in water and used as a reagent
- sex education — Sex education is education in schools on the subject of sexual activity and sexual relationships.
- soda fountain — a counter, as in a restaurant or drugstore, at which sodas, ice cream, light meals, etc., are served.
- solidungulate — having a single, undivided hoof on each foot, as a horse.
- sound barrier — Also called sonic barrier, transonic barrier. (not in technical use) a hypothetical barrier to flight beyond the speed of sound, so postulated because aircraft undergo an abruptly increasing drag force induced by compression of the surrounding air when traveling near the speed of sound.
- sound library — a collection of sounds stored on file (for example on CDs, DVDs, or as digital audio files)
- sound ranging — a method for determining the distance between a point and the position of a sound source by measuring the time lapse between the origin of the sound and its arrival at the point.
- sounding lead — a line weighted with a lead or plummet (sounding lead) and bearing marks to show the length paid out, used for sounding, as at sea.
- soup-and-fish — a man's formal evening clothes.
- subdelegation — a group or body of delegates: Our club sent a delegation to the rally.
- subindication — the act or process of subindicating
- subordination — the act of placing in a lower rank or position: The refusal to allow women to be educated was part of society's subordination of women to men.
- subordinative — placed in or belonging to a lower order or rank.
- subsidization — to furnish or aid with a subsidy.
- sulfonic acid — any of a large group of organic compounds of the structure RSO 2 OH, which are strong acids that give neutral sodium salts: used in the synthesis of phenols, dyes, and other substances.
- superdominant — submediant.