17-letter words containing p, a, t, i
- mentally impaired — with reduced or weakened mental capacity
- merchant shipping — shipping which is involved in commerce (rather than defence, etc)
- metabolic pathway — biochemistry: sequence of reactions within a cell or organism
- metalloproteinase — (enzyme) Any of several proteinases that have a metal atom (often zinc) at their active centre.
- metaperiodic acid — the crystalline compound HIO4, an oxyacid of iodine
- microencapsulated — Encapsulated using microencapsulation.
- micromanipulation — the technique of performing mechanical operations under high magnification through the use of specialized tools.
- micromanipulators — Plural form of micromanipulator.
- micropaleontology — the branch of paleontology dealing with the study of microscopic fossils.
- microphanerophyte — any shrub or tree having a height of 2 to 8 metres
- microphotographic — Relating to microphotography.
- midsagittal plane — a plane passing through the nasion when the skull is oriented in the Frankfurt horizontal.
- misappropriations — Plural form of misappropriation.
- misinterpretation — An instance of misinterpreting.
- misrepresentation — to represent incorrectly, improperly, or falsely.
- misrepresentative — to represent incorrectly, improperly, or falsely.
- mississippi delta — an area between the Mississippi and Yazoo rivers in the northwest of the state of Mississippi; it is very flat and fertile
- mitre corporation — (body) A US federally funded R&D center, spun off in 1958 from the MIT Lincoln Laboratory (also an FFRDC). MITRE is a non-profit corporation chartered to do R&D in the public interest. MITRE were responsible for system engineering and implementation oversight of SAGE. MITRE does not stand for MIT Research and Engineering, though it could have.
- mongolian hot pot — a stewlike dish of sliced meat, seafood, and vegetables cooked together in hot broth, often in a clay pot, and seasoned with a hot sauce.
- mount kirkpatrick — a mountain in Antarctica, in S Victoria Land in the Queen Alexandra Range. Height: 4528 m (14 856 ft)
- mounted policeman — policemen who patrol on horseback
- multidisciplinary — composed of or combining several usually separate branches of learning or fields of expertise: a multidisciplinary study of the 18th century.
- multiple integral — an integral in which the integrand involves a function of more than one variable and which requires for evaluation repetition of the integration process.
- multiple-unit car — a self-propelled railroad car, generally used in commuting service, equipped so that a train of such cars can be operated from any one of them.
- multipotentiality — The capacity to develop in multiple ways; the state of having multiple potentialities.
- native frangipani — an Australian evergreen tree, Hymenosporum flavum, with large fragrant yellow flowers: family Pittosporaceae
- negative particle — a word that indicates negativity, for example 'not' in English or 'ne pas' in French
- negative polarity — the grammatical character of a word or phrase, such as ever or any, that may normally be used only in a semantically or syntactically negative or interrogative context
- nephelometrically — By means of nephelometry.
- neuropathological — (medicine) Of, pertaining to, or arising from neuropathology, the pathology of nerve tissue.
- neuropsychiatrist — A medical doctor specializing in neuropsychiatry; a medical doctor dealing with disorders that have both neurological and psychiatric features.
- newspaper cutting — clipping from a news publication
- non-profit-making — A non-profit-making organization or charity is not run with the intention of making a profit.
- non-proliferation — Non-proliferation is the limiting of the production and spread of something such as nuclear or chemical weapons.
- non-reciprocating — to give, feel, etc., in return.
- non-stereotypical — a process, now often replaced by more advanced methods, for making metal printing plates by taking a mold of composed type or the like in papier-mâché or other material and then taking from this mold a cast in type metal.
- non-thermoplastic — soft and pliable when heated, as some plastics, without any change of the inherent properties.
- nonaccomplishment — Something that does not achieve the intended goal.
- nonimpact printer — a printer that creates images without mechanically impacting the page, as an ink-jet or laser printer.
- nonrepresentative — a person or thing that represents another or others.
- occipital condyle — a protrusion on the occipital bone of the skull that forms a joint with the first cervical vertebra, enabling the head to move relative to the neck.
- old spanish trail — an overland route from Santa Fe, N. Mex., to Los Angeles, Calif., first marked out in 1776 by Spanish explorers and missionaries.
- olympic mountains — a mountain range in NW Washington: part of the Coast Range. Highest peak: Mount Olympus, 2427 m (7965 ft)
- omphalomesenteric — (anatomy) Of or pertaining to the umbilicus and mesentery.
- on speaking terms — the act, utterance, or discourse of a person who speaks.
- on the pig's back — successful; established
- on-street parking — parking (of a car, vehicle, etc) that is or is allowed to be done on a street
- one-parent family — A one-parent family is a family that consists of one parent and his or her children living together.
- one-time password — (security) (OTP) A security system that requires a new password every time a user authenticates themselves, thus protecting against an intruder replaying an intercepted password. OTP generates passwords using either the MD4 or MD5 hashing algorithms. The equivalent term "S/Key", developed by Bellcore, is a trademark of Telcordia Technologies, so the name OTP is used increasingly. See RFC 1760 - "The S/KEY One-Time Password System" and RFC 1938 - "A One-Time Password System".
- onomatopoetically — the formation of a word, as cuckoo, meow, honk, or boom, by imitation of a sound made by or associated with its referent.