13-letter words containing l, o, u, d
- oeil-de-boeuf — a comparatively small round or oval window, as in a frieze.
- off-side rule — A lexical convention due to Landin, allowing the scope of declarations in a program to be expressed by indentation. Any non-whitespace token to the left of the first such token on the previous line is taken to be the start of a new declaration. Used in, for example, Miranda and Haskell.
- oil-based mud — Oil-based mud is a drilling fluid that is an emulsion containing oil as the base fluid.
- old and young — people of all ages
- old bulgarian — the Bulgarian language of the Middle Ages.
- old favourite — If you refer to something as an old favourite, you mean that it has been in existence for a long time and everyone knows it or likes it.
- old ritualist — Raskolnik.
- olduvai gorge — a gorge in Tanzania in which is located a site containing Australopithecine and human skeletal and cultural remains.
- on cloud nine — blissfully happy
- on the double — twice as large, heavy, strong, etc.; twofold in size, amount, number, extent, etc.: a double portion; a new house double the size of the old one.
- openmouthedly — in a manner filled with amazement and wonder
- 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
- ottawa euclid — Euclid
- outdo oneself — to do something better than one ever did before or thought one could do
- outgeneralled — Simple past tense and past participle of outgeneral.
- outstandingly — prominent; conspicuous; striking: an outstanding example of courage.
- overcredulity — Excessive credulity.
- overcredulous — willing to believe or trust too readily, especially without proper or adequate evidence; gullible.
- overmultitude — to exceed in number
- overpopulated — to fill with an excessive number of people, straining available resources and facilities: Expanding industry has overpopulated the western suburbs.
- overqualified — having more education, training, or experience than is required for a job or position.
- pamlico sound — a sound between the North Carolina mainland and coastal islands.
- pandiculation — the act of stretching oneself.
- partly cloudy — sky: not constantly clear
- pentadelphous — (of a plant) having its stamens arranged in five groups; (of stamens) being arranged in five groups
- philo judaeus — c20 b.c.–a.d. c50, Alexandrian Jewish theologian and philosopher.
- phyllocladous — having phylloclades.
- platitudinous — characterized by or given to platitudes.
- pleasure dome — a large building, facility, or place used for recreation.
- plenitudinous — characterized or marked by plenitude.
- plough monday — the first Monday after Epiphany, which in N and E England used to be celebrated with a procession of ploughmen drawing a plough from house to house
- polyadelphous — (of stamens) united by the filaments into three or more sets or bundles.
- polybutadiene — a rubberlike polymer of butadiene blended with other synthetics to replace natural rubber in tires.
- port du salut — Port-Salut.
- poulard wheat — a Mediterranean wheat, Triticum turgidum, grown as a forage crop in the U.S.
- poult-de-soie — a soft, ribbed silk fabric, used especially for dresses.
- pound-foolish — not handling large sums of money wisely
- pre-adulthood — of or relating to the period prior to adulthood: preadult strivings for independence.
- preformulated — to express in precise form; state definitely or systematically: He finds it extremely difficult to formulate his new theory.
- producibility — to bring into existence; give rise to; cause: to produce steam.
- pseudo-colour — an artificial colour
- pseudo-social — relating to, devoted to, or characterized by friendly companionship or relations: a social club.
- pseudoclassic — falsely or spuriously classic.
- public domain — the status of a literary work or an invention whose copyright or patent has expired or that never had such protection.
- quadrifoliate — (botany) Having four leaves or leaflets.
- 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.
- quadrilocular — having four compartments
- 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.