13-letter words containing u, n, i, o, d
- 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.
- quindecillion — a cardinal number represented in the U.S. by 1 followed by 48 zeros, and in Great Britain by 1 followed by 90 zeros.
- 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
- reconstituted — constituted again, especially of a liquid product made by adding water to dry solids from which the water has been evaporated: reconstituted orange juice.
- rectitudinous — characterized by or given to rectitude.
- redial button — a button on a telephone, allowing the user to dial a number again
- redissolution — the act of redissolving
- reduplication — the act of reduplicating; the state of being reduplicated.
- rendezvousing — an agreement between two or more persons to meet at a certain time and place.
- ring compound — a compound whose structural formula contains a closed chain or ring of atoms; a cyclic compound. Compare cyclic (def 3).
- rock hounding — the activity of searching for and collecting rocks, fossils, or minerals.
- rough diamond — gemstone: uncut diamond
- round herring — any of several herringlike fishes of the family Dussumieriidae having a rounded abdomen, living chiefly in tropical marine waters.
- round-tripper — a home run.
- roundtripping — a form of trading in which a company borrows a sum of money from one source and takes advantage of a short-term rise in interest rates to make a profit by lending it to another
- 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.
- running order — The running order of the items in a broadcast, concert, or show is the order in which the items will come.
- scoping study — a preliminary study to define the scope of a project
- second cousin — a child of a first cousin of one's parent. Compare cousin (def 1).
- selenous acid — a colorless, transparent, crystalline powder, H2SeO3, soluble in water and used as a reagent
- self-delusion — the act or fact of deluding oneself.
- self-doubting — lacking in confidence
- semiconductor — a substance, as silicon or germanium, with electrical conductivity intermediate between that of an insulator and a conductor: a basic component of various kinds of electronic circuit element (semiconductor device) used in communications, control, and detection technology and in computers.
- serendipitous — come upon or found by accident; fortuitous: serendipitous scientific discoveries.
- 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.
- sounding line — 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.
- soundproofing — materials used to make something soundproof
- soup-and-fish — a man's formal evening clothes.
- south windsor — a town in N Connecticut.
- splendiferous — splendid; magnificent; fine.
- spot reducing — the usually futile effort to exercise one part of the body, as the thighs, in hopes of reducing the amount of fat stored in that area.
- student union — a building or rooms on a college or university campus, set aside for recreational, social, and governmental activities of the students.
- 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.