13-letter words containing a, s, o, d
- orlando lasso — Orlando di [dee] /di/ (Show IPA), (Orlandus Lassus) 1532–94, Flemish composer.
- orsellic acid — an acid found in lichens
- osborne, adam — Adam Osborne
- outdistancing — Present participle of outdistance.
- outdoorswoman — a woman devoted to outdoor sports and recreational activities.
- outstandingly — prominent; conspicuous; striking: an outstanding example of courage.
- over-standing — overreach (def 13).
- overdiagnosed — Simple past tense and past participle of overdiagnose.
- overdiagnosis — excessive diagnosis of a disease
- overdramatise — Alternative spelling of overdramatize.
- overestimated — Simple past tense and past participle of overestimate.
- overhead-shot — over one's head; aloft; up in the air or sky, especially near the zenith: There was a cloud overhead.
- oversaturated — to cause (a substance) to unite with the greatest possible amount of another substance, through solution, chemical combination, or the like.
- paedomorphism — the continuation of juvenile characteristics in the adult stage
- painted horse — paint (def 6).
- pamlico sound — a sound between the North Carolina mainland and coastal islands.
- pandora shell — any marine bivalve of the genus Pandora, having a scimitar-shaped shell with a pronounced ridge along the hinge.
- pandora's box — a source of extensive but unforeseen troubles or problems: The senate investigation turned out to be a Pandora's box for the administration.
- paradise lost — an epic poem (1667) by John Milton.
- parasitoidism — the feeding by certain insect larvae on host tissues such that the host remains alive until larval development is complete and then usually dies.
- pass the word — If you pass the word, you tell someone something that another person has told you.
- passamaquoddy — a member of a small tribe of North American Indians formerly of coastal Maine and New Brunswick and now living in Maine.
- patriot's day — the third Monday in April, a legal holiday in Me. and Mass. commemorating the battles of Lexington and Concord (April 19, 1775)
- patriots' day — the anniversary of the battles of Lexington and Concord (1775), celebrated the third Monday in April: a legal holiday in Massachusetts and Maine.
- pedro santana — Pedro [pey-droh;; Spanish pe-th raw] /ˈpeɪ droʊ;; Spanish ˈpɛ ðrɔ/ (Show IPA), 1801–64, Dominican revolutionary and political leader: president 1844–48, 1853–56, 1858–61.
- pentadelphous — (of a plant) having its stamens arranged in five groups; (of stamens) being arranged in five groups
- periodicalist — a writer of articles for periodicals
- perissodactyl — having an uneven number of toes or digits on each foot.
- phase encoded — (storage) (PE) A recording method used for 1600 BPI magnetic tapes. Compare NRZI, GCR.
- philo judaeus — c20 b.c.–a.d. c50, Alexandrian Jewish theologian and philosopher.
- phong shading — (graphics) A model of how light is reflected from surfaces used extensively in three dimensional graphics to generate visually realistic images.
- phony disease — a disease of peaches, characterized by dwarfing, dark-green leaves, premature leafing and flowering, and the production of reduced numbers of small fruit, caused by a virus, Nanus mirabilis.
- photodynamics — the science dealing with light and its effects on living organisms.
- phyllocladous — having phylloclades.
- plasmodesmata — any of many minute strands of cytoplasm that extend through plant cell walls and connect adjoining cells.
- plasmodiocarp — a fruiting body of certain myxomycetes.
- platitudinous — characterized by or given to platitudes.
- play on words — a pun or the act of punning.
- pleasure dome — a large building, facility, or place used for recreation.
- polyadelphous — (of stamens) united by the filaments into three or more sets or bundles.
- polydaemonism — the belief in many evil spirits.
- port du salut — Port-Salut.
- posix threads — (programming) (Pthreads) A POSIX standard API that defines a set of C programming language types, functions and constants for creating and manipulating pre-emptive threads. The standard's full name is "POSIX.1c, Threads extensions (IEEE Std 1003.1c-1995)". Implementations are available on many Unix-like POSIX-conformant operating systems such as FreeBSD, NetBSD, OpenBSD, GNU/Linux, Mac OS X and Solaris as well as DR-DOS and Microsoft Windows. Pthreads was designed and implemented in the PART Project (POSIX / Ada-Runtime Project).
- post-actinide — transactinide
- 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.
- post-graduate — of, pertaining to, characteristic of, or consisting of post-graduates: a postgraduate seminar.
- post-prandial — after a meal, especially after dinner: postprandial oratory; a postprandial brandy.
- postdebutante — following the stage of being a debutante
- postsecondary — of or relating to education beyond high school: She completed her postsecondary education at a two-year college.
- preadolescent — of or relating to preadolescence or a preadolescent.