12-letter words containing s, p, r, o
- nondescripts — Plural form of nondescript.
- nonparasitic — Not parasitic.
- nonpassenger — One who is not a passenger.
- nonpasserine — (of a bird) not belonging or relating to the Passeriformes
- nonpurposive — lacking purpose
- nonresponder — something or someone that does not respond
- nonspherical — not spherical
- nonspiritual — Not spiritual.
- nonsponsored — Not sponsored.
- normed space — any vector space on which a norm is defined.
- northern spy — an American variety of red-striped apple that ripens in autumn or early winter.
- nosey parker — a persistently nosy, prying person; busybody.
- np-hilarious — (humour) An algorithm whose complexity is a joke, either literally, as in BogoSort, or metaphorically.
- numbers pool — Also called numbers, numbers game, numbers racket. an illegal daily lottery in which money is wagered on the appearance of certain numbers in some statistical listing or tabulation published in a daily newspaper, racing form, etc.
- nyctitropism — tending to assume at or just before nightfall positions unlike those maintained during the day, as the leaves or flowers of certain plants.
- obcompressed — compressed or flattened in a way opposite to the usual, as back to front instead of side to side.
- obreptitious — having the characteristics of acquiring something by deceitful means
- observership — someone or something that observes.
- obstreperate — to be extremely noisy or to create a resounding din
- obstreperous — resisting control or restraint in a difficult manner; unruly.
- octastrophic — having or containing eight verses or strophes
- offset paper — paper used in a printing method in which the impression is made onto an intermediate surface, such as a rubber blanket, which transfers it to the paper
- offset press — a printing press used in the offset process, whereby a printing the impression is made onto an intermediate surface, such as a rubber blanket, which transfers it to the paper
- oil pressure — force that keeps engine lubricated
- oilseed rape — Oilseed rape is a plant with yellow flowers which is grown as a crop. Its seeds are crushed to make cooking oil.
- old prussian — a Baltic language extinct since the 17th century. Abbreviation: OPruss.
- oligospermia — (medicine) Low volume of semen.
- ombrophilous — (of plants) tolerant of wet conditions
- ombrophobous — (of plants) not able to tolerate wet conditions
- ombudsperson — ombudsman (def 2).
- omnipresence — present everywhere at the same time: the omnipresent God.
- on sb's part — If you talk about a feeling or action on someone's part, you are referring to something that they feel or do.
- on shipboard — on board a ship
- on the ropes — a strong, thick line or cord, commonly one composed of twisted or braided strands of hemp, flax, or the like, or of wire or other material.
- open cluster — a comparatively young, irregularly shaped group of stars, often numbering up to several hundred, and held together by mutual gravitation; usually found along the central plane of the Milky Way and other galaxies.
- open slather — to spread or apply thickly: to slather butter on toast.
- opera singer — a professional singer of opera
- operationism — the doctrine that the meaning of a scientific term, concept, or proposition consists of the operation or operations performed in defining or demonstrating it.
- operatorless — Without an operator (person who operates); fully automatic.
- operatorship — (in the oil and gas industries) the right to operate a well, field, or other oil source.
- ophiolatrous — of, relating to, or practising snake-worshipping
- opinionators — Plural form of opinionator.
- opisthograph — a manuscript, parchment, or book having writing on both sides of the leaves.
- opportunists — Plural form of opportunist.
- oppressional — Exhibiting or relating to oppression.
- oppressively — burdensome, unjustly harsh, or tyrannical: an oppressive king; oppressive laws.
- optoisolator — A device that transmits a signal optically between two isolated electronic circuits.
- optometrists — Plural form of optometrist.
- oreopithecus — a genus of fossil primate from the Miocene coal deposits of Italy, formerly considered to be a possible hominid.
- ornithopters — Plural form of ornithopter.