13-letter words containing s, p, o, r, i
- nonpractising — of or relating to a person who no longer observes or pursues his or her religious faith
- nonprescribed — Not prescribed.
- nonresponsive — responding especially readily and sympathetically to appeals, efforts, influences, etc.: a responsive government.
- o-proposition — a particular negative proposition
- ocean springs — a town in SE Mississippi.
- omnipresently — In an omnipresent manner.
- on the parish — receiving parochial relief
- oneiroscopist — a person who specialises in studying and interpreting dreams
- onus probandi — the burden of proof.
- open registry — ship registration under a national flag available to all ships regardless of nationality.
- open universe — a model of the universe in which the universe expands forever because there is not enough mass to counteract the expansion by means of gravitational attraction.
- opening hours — Opening hours are the times during which a shop, bank, library, or bar is open for business.
- operativeness — (uncountable) The state or quality of being operative.
- opisthobranch — any gastropod mollusk of the order Opisthobranchia, as the sea slugs, sea butterflies, and sea hares, characterized by a vestigial or absent mantle and shell and two pairs of tentacles.
- opisthography — the practice of writing on the front and back of a parchment or papyrus
- opportunistic — adhering to a policy of opportunism; practicing opportunism.
- opportunities — Plural form of opportunity.
- oppositionary — the action of opposing, resisting, or combating.
- opprobriously — In an opprobrious manner.
- ora pro nobis — a Latin invocation meaning pray for us
- orchestra pit — musicians' seating in front of stage
- orchestra-pit — a group of performers on various musical instruments, including especially stringed instruments of the viol class, clarinets and flutes, cornets and trombones, drums, and cymbals, for playing music, as symphonies, operas, popular music, or other compositions.
- organotropism — Physiology. the attraction of microorganisms or chemical substances to particular organs or tissues of the body.
- orthographies — Plural form of orthography.
- oscillographs — Plural form of oscillograph.
- oscillography — a device for recording the wave-forms of changing currents, voltages, or any other quantity that can be translated into electric energy, as sound waves.
- osteopetrosis — any of several hereditary diseases characterized by increased bone density.
- outprocessing — to end a military tour of duty, accompanied by necessary paperwork: All enlisted soldiers out-process as a class.
- over-promised — a declaration that something will or will not be done, given, etc., by one: unkept political promises.
- over-shipment — an act or instance of shipping freight or cargo.
- overappraisal — An appraisal that overvalues something.
- overemphasise — (British) alternative spelling of overemphasize.
- overemphasize — to emphasize excessively.
- overexpansion — the act or process of expanding.
- overimpressed — very impressed
- overprescribe — to lay down, in writing or otherwise, as a rule or a course of action to be followed; appoint, ordain, or enjoin.
- overprovision — a clause in a legal instrument, a law, etc., providing for a particular matter; stipulation; proviso.
- ovoviviparous — producing eggs that are hatched within the body, so that the young are born alive but without placental attachment, as certain reptiles or fishes.
- paedomorphism — the continuation of juvenile characteristics in the adult stage
- painted horse — paint (def 6).
- palaeocrystic — consisting of former glacial formation
- 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.
- pantisocratic — relating to pantisocracy
- paper profits — an unrealized profit due to the appreciation of something owned but not yet sold.
- paradise lost — an epic poem (1667) by John Milton.
- 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.
- parapophysial — of or relating to a parapophysis
- parapsychosis — an abnormal psychosis
- 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)