13-letter words containing a, p, o, n
- ora pro nobis — a Latin invocation meaning pray for us
- organotherapy — the branch of therapeutics that deals with the use of remedies prepared from the organs of animals, as from the thyroid gland, the pancreas, or the suprarenal bodies.
- organotropism — Physiology. the attraction of microorganisms or chemical substances to particular organs or tissues of the body.
- ornithophobia — Fear of birds.
- oropharyngeal — the part of the pharynx between the soft palate and the upper edge of the epiglottis.
- orthopinakoid — a crystalline plane
- outmanipulate — to surpass in manipulation
- outwash plain — Geology. a broad, sloping landform built of coalesced deposits of outwash.
- over-planning — a scheme or method of acting, doing, proceeding, making, etc., developed in advance: battle plans.
- overexpansion — the act or process of expanding.
- overland park — a town in E Kansas, near Kansas City.
- overpedalling — the overuse of the piano's pedals
- overpotential — overvoltage.
- ovipositional — pertaining to the laying of eggs through an ovipositor
- pacific ocean — an ocean bordered by the American continents, Asia, and Australia: largest ocean in the world; divided by the equator into the North Pacific and the South Pacific. 70,000,000 sq. mi. (181,300,000 sq. km); greatest known depth, 35,433 feet (10,800 meters).
- packing house — A packing house is a company that processes and packs food, especially meat, to be sold.
- paddling pool — A paddling pool is a shallow artificial pool for children to paddle in.
- painted horse — paint (def 6).
- painted woman — a prostitute; slut.
- palaeocurrent — an ancient current, esp of water, evidence of which has been preserved in sedimentary rocks as fossilized ripple marks, etc
- palaeontology — Palaeontology is the study of fossils as a guide to the history of life on Earth.
- palazzo pants — women's trousers with very wide legs
- paleethnology — (formerly) the branch of ethnology concerned with the earliest or most primitive human societies.
- paleomagnetic — Geology. magnetic polarization acquired by the minerals in a rock at the time the rock was deposited or solidified.
- paleosiberian — a group of languages comprising those languages of Siberia that are not affiliated with Indo-European, Altaic, Uralic, or Eskimo-Aleut and including the Chukotian family and the unrelated language isolates Ket, Nivkh, and Yukaghir; Paleo-Asiatic.
- palletization — to place (materials) upon pallets for handling or moving.
- palmification — the fertilization of date palms artificially
- pamlico sound — a sound between the North Carolina mainland and coastal islands.
- pan-teutonism — Pan-Germanism.
- pancreatotomy — incision of the pancreas.
- pandiculation — the act of stretching oneself.
- 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.
- pangola grass — a grass, Digitaria decumbens, native to southern Africa, cultivated for hay and forage in the southeastern U.S.
- panharmonicon — a mechanical instrument that imitates orchestral sounds
- panleucopenia — a viral disease of cats marked by a deficiency of white blood cells
- panleukopenia — distemper1 (def 1c).
- pannikin boss — an overseer of a small group of workers; person with minor authority.
- panradiometer — an instrument used for measuring radiant heat independently of wavelength
- pantheologist — a student of, or expert in, pantheology
- pantisocratic — relating to pantisocracy
- parade ground — A parade ground is an area of ground where soldiers practise marching and have parades.
- paralipomenon — Chronicles.
- paranormality — the state of being paranormal
- parasyntheton — a word formed by parasynthesis; for example, kind-hearted
- parencephalon — a cerebral hemisphere
- parental home — a school for problem children.
- parietal bone — either of a pair of membrane bones forming, by their union at the sagittal suture, part of the sides and top of the skull.
- paris commune — commune3 (def 8).
- parking orbit — a temporary orbit in which a spacecraft awaits the next phase of its mission.