13-letter words containing a, d, s, o, r
- more hands on — characterized by or involved in active personal participation in an activity; individual and direct: a workshop to give children hands-on experience with computers.
- morris dancer — A morris dancer is a person who takes part in morris dancing.
- muzzleloaders — Plural form of muzzleloader.
- narrow-fisted — tight-fisted.
- neo-darwinism — the theory of evolution as expounded by later students of Charles Darwin, especially Weismann, holding that natural selection accounts for evolution and denying the inheritance of acquired characters.
- no-score draw — A no-score draw is the result of a football match in which neither team scores any goals.
- non-dangerous — full of danger or risk; causing danger; perilous; risky; hazardous; unsafe.
- non-sedentary — accustomed to sit or rest a great deal or to take little exercise.
- nonadsorptive — Not adsorptive.
- nondecreasing — not decreasing.
- nonindustrial — of, pertaining to, of the nature of, or resulting from industry: industrial production; industrial waste.
- nonrandomness — the quality or condition of not being random
- nonsegregated — Not segregated.
- northeastward — the northeast.
- northwestward — the northwest.
- of many words — talkative
- old ritualist — Raskolnik.
- onus probandi — the burden of proof.
- open-standard — (of computer programs, codes, etc) freely available to all users
- orchard grass — a weedy grass, Dactylis glomerata, often grown for pastures.
- ordinal scale — a scale on which data is shown simply in order of magnitude since there is no standard of measurement of differences: for instance, a squash ladder is an ordinal scale since one can say only that one person is better than another, but not by how much
- ordinary loss — An ordinary loss is a loss in the course of normal business.
- 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
- outdoorswoman — a woman devoted to outdoor sports and recreational activities.
- 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).
- 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.
- 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.
- periodicalist — a writer of articles for periodicals
- perissodactyl — having an uneven number of toes or digits on each foot.
- plasmodiocarp — a fruiting body of certain myxomycetes.
- play on words — a pun or the act of punning.
- pleasure dome — a large building, facility, or place used for recreation.
- 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).