12-letter words containing p, o, i, r
- neuropeptide — any of various short-chain peptides, as endorphins, that function as neuromodulators in the nervous system and as hormones in the endocrine system.
- neuroplastic — Of or pertaining to neuroplasticity.
- neuropterist — an entomologist specializing in neuropteran insects
- neurotrophic — of or relating to the effect of nerves on the nutritive processes.
- neurotropism — the quality of being neurotropic.
- neurotypical — relating to or showing typical neurological behavior and development: She has one dyslexic and one neurotypical child.
- neutrophiles — (of a cell or cell part) having an affinity for neutral dyes.
- neutrophilic — (of a cell or its contents) readily stained only by neutral dyes.
- neutrosophic — Neutrosophy
- night person — a person who prefers to stay up late or who functions best during the nighttime hours.
- night porter — A night porter is a person whose job is to be on duty at the main reception desk of a hotel throughout the night.
- nitrophilous — (of plants) growing in soil well supplied with nitrogen
- nobel prizes — any of various awards made annually, beginning in 1901, from funds originally established by Alfred B. Nobel for outstanding achievement in physics, chemistry, medicine or physiology, literature, and the promotion of peace; an annual award in economics was established in 1969 from private funds.
- nocireceptor — a receptor sensitive to pain
- non-atrophic — Also, atrophia [uh-troh-fee-uh] /əˈtroʊ fi ə/ (Show IPA). Pathology. a wasting away of the body or of an organ or part, as from defective nutrition or nerve damage.
- non-complier — a person, group, etc., that complies.
- non-partisan — A person or group that is non-partisan does not support or help a particular political party or group.
- non-riparian — of, relating to, or situated or dwelling on the bank of a river or other body of water: riparian villas.
- non-spurious — not genuine, authentic, or true; not from the claimed, pretended, or proper source; counterfeit.
- non-strophic — Also, strophical. consisting of, pertaining to, or characterized by a strophe or strophes.
- nondescripts — Plural form of nondescript.
- nonempirical — derived from or guided by experience or experiment.
- nonimportant — Not important.
- nonoperating — Not operating.
- nonoperative — a person engaged, employed, or skilled in some branch of work, especially productive or industrial work; worker.
- nonparasitic — Not parasitic.
- nonpasserine — (of a bird) not belonging or relating to the Passeriformes
- nonpractical — Not practical.
- nonproducing — that does not produce
- nonpurposive — lacking purpose
- nonspherical — not spherical
- nonspiritual — Not spiritual.
- norephedrine — The drug phenylpropanolamine.
- normal pitch — relative point, position, or degree: a high pitch of excitement.
- np-hilarious — (humour) An algorithm whose complexity is a joke, either literally, as in BogoSort, or metaphorically.
- nuxi problem — (data, architecture) /nuk'see pro'bl*m/ The problem of transferring data between computers with differing byte order. The string "Unix" might look like "NUXI" on a machine with a different "byte sex" (e.g. when transferring data from a little-endian to a big-endian, or vice-versa). See also middle-endian, swab, and bytesexual.
- nyctitropism — tending to assume at or just before nightfall positions unlike those maintained during the day, as the leaves or flowers of certain plants.
- obreptitious — having the characteristics of acquiring something by deceitful means
- observership — someone or something that observes.
- octastrophic — having or containing eight verses or strophes
- office party — a party or informal social gathering for all the employees in a particular organization or department
- oil platform — An oil platform is a structure that is used when getting oil from the ground under the sea.
- oil pressure — force that keeps engine lubricated
- oil producer — a country with reserves of oil
- 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.
- oligophrenia — less than normal mental development.
- oligophrenic — less than normal mental development.
- oligospermia — (medicine) Low volume of semen.
- oligotrophic — (of a lake) characterized by a low accumulation of dissolved nutrient salts, supporting but a sparse growth of algae and other organisms, and having a high oxygen content owing to the low organic content.