13-letter words containing i, m, p, a, s, o
- olympic games — international sports event
- ombudsmanship — The position or office of an ombudsman.
- one-upmanship — the art or practice of achieving, demonstrating, or assuming superiority in one's rivalry with a friend or opponent by obtaining privilege, status, status symbols, etc.: the one-upmanship of getting into the president's car pool.
- onomatopoeias — Plural form of onomatopoeia.
- optic chiasma — a site at the base of the forebrain where the inner half of the fibers of the left and right optic nerves cross to the opposite side of the brain.
- optical mouse — (hardware) Any kind of mouse that uses visible light or infrared to detect changes in its position.
- optimizations — Plural form of optimization.
- organotropism — Physiology. the attraction of microorganisms or chemical substances to particular organs or tissues of the body.
- overemphasise — (British) alternative spelling of overemphasize.
- overemphasize — to emphasize excessively.
- paedomorphism — the continuation of juvenile characteristics in the adult stage
- pamlico sound — a sound between the North Carolina mainland and coastal islands.
- pan-teutonism — Pan-Germanism.
- papillomatous — a benign tumor of the skin or mucous membrane consisting of hypertrophied epithelial tissue, as a wart.
- paramyxovirus — any of various RNA-containing viruses that are similar to but larger than the myxoviruses, including the viruses that cause mumps, measles, parainfluenza, and Newcastle disease.
- 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.
- parasymbiosis — the symbiotic relationship that occurs between certain species of fungi and lichens (which are themselves symbiotic associations between a fungus and an alga)
- paris commune — commune3 (def 8).
- pathomorphism — abnormal morphology.
- pentatonicism — the use of a five-tone scale.
- perimenopause — the period leading up to the menopause during which some of the symptoms associated with menopause may be experienced
- persian melon — a round variety of muskmelon having a green, reticulate, unribbed rind and orange flesh.
- phenomenalism — the doctrine that phenomena are the only objects of knowledge or the only form of reality.
- phonocamptics — the branch of acoustics dealing with echoes
- photodynamics — the science dealing with light and its effects on living organisms.
- physharmonica — a keyboard musical instrument fitted with free reeds, and which is an early form of harmonium
- pianississimo — (of a piece of music) to be played even more quietly or softly than pianissimo; abbreviated as ppp
- piers plowman — (The Vision Concerning Piers Plowman) an alliterative poem written in three versions (1360–99), ascribed to William Langland.
- piroplasmosis — babesiosis.
- plagiostomous — plagiostome
- plagiotropism — plagiotropic tendency or growth.
- plasmodiocarp — a fruiting body of certain myxomycetes.
- plastic money — credit cards, used instead of cash
- plimsoll mark — load-line mark.
- pneumatolysis — the process by which rocks are altered or minerals and ores are formed by the action of vapors given off by magma.
- pneumogastric — of or relating to the lungs and stomach.
- pococurantism — a careless or indifferent person.
- poison sumach — an anacardiaceous swamp shrub, Rhus (or Toxicodendron) vernix of the southeastern US, that has greenish-white berries and causes an itching rash on contact with the skin
- polydaemonism — the belief in many evil spirits.
- polynomialism — a polynomial naming system
- polyoma virus — a small DNA-containing virus, of the papovavirus group, that can produce a variety of tumors in mice, hamsters, rabbits, and rats.
- polyribosomal — relating to a polyribosome
- polysyllabism — a polysyllabic style or the use of multisyllabic words
- pons asinorum — a geometric proposition that if a triangle has two of its sides equal, the angles opposite these sides are also equal: so named from the difficulty experienced by beginners in mastering it. Euclid, 1:5.
- popular music — music having wide appeal, esp characterized by lightly romantic or sentimental melodies
- post-cambrian — Geology. noting or pertaining to a period of the Paleozoic Era, occurring from 570 million to 500 million years ago, when algae and marine invertebrates were the predominant form of life.
- post-marriage — (broadly) any of the diverse forms of interpersonal union established in various parts of the world to form a familial bond that is recognized legally, religiously, or socially, granting the participating partners mutual conjugal rights and responsibilities and including, for example, opposite-sex marriage, same-sex marriage, plural marriage, and arranged marriage: Anthropologists say that some type of marriage has been found in every known human society since ancient times. See Word Story at the current entry.
- posttraumatic — occurring after physical or psychological trauma.
- praetorianism — the control of a society by force or fraud, especially when exercised through titular officials and by a powerful minority.
- prebasic molt — the molt by which most birds replace all of their feathers, usually occurring annually after the breeding season.