15-letter words containing n, o, h, a
- pontine marshes — an area of W Italy, southeast of Rome: formerly malarial swamps, drained in 1932–34 after numerous attempts since 160 bc had failed
- port washington — a town on NW Long Island, in SE New York.
- power macintosh — Power Mac
- probationership — the position of a probationer
- process heating — Process heating is heating, usually from steam, which is used to increase the temperature in a process vessel.
- propionaldehyde — a colorless, water-soluble liquid, C 3 H 6 O, having a pungent odor: used chiefly in the manufacture of plastics.
- proscenium arch — the arch separating the stage from the auditorium
- pseudepigraphon — any book of the Pseudepigrapha
- pseudo-bohemian — living a wandering or vagabond life, as a Gypsy.
- pseudohexagonal — of, relating to, or having the form of a hexagon.
- psychodiagnosis — a psychological examination using psychodiagnostic techniques.
- psychohistorian — a person who writes psychohistory
- pulmobranchiate — possessing a pulmobranch
- put the make on — to bring into existence by shaping or changing material, combining parts, etc.: to make a dress; to make a channel; to make a work of art.
- pyrotechnically — in a pyrotechnical manner
- quantity theory — a theory stating that the general price level varies directly with the quantity of money in circulation and the velocity with which it is circulated, and inversely with the volume of production expressed by the total number of money transactions
- queen of heaven — a designation of the Virgin Mary.
- quiche lorraine — a quiche containing bits of bacon or ham and often cheese.
- radio telephone — A radio telephone is a telephone which carries sound by sending radio signals rather than by using wires. Radio telephones are often used in cars.
- radio-telephone — a telephone in which sound or speech is transmitted by means of radio waves instead of through wires or cables.
- radiotechnology — the technical application of any form of radiation to industry.
- raise one's hat — to take one's hat briefly off one's head as a greeting or mark of respect
- ray of sunshine — beam of sunlight
- reauthorization — the act or process of reauthorizing something
- reorchestration — a renewed or second orchestration of a piece of music, the act of reorchestrating
- rhodesian front — the governing party in Zimbabwe (then called Rhodesia) 1962–78
- rhombencephalon — the hindbrain.
- rhyme or reason — If something happens or is done without rhyme or reason, there seems to be no logical reason for it to happen or be done.
- right ascension — the arc of the celestial equator measured eastward from the vernal equinox to the foot of the great circle passing through the celestial poles and a given point on the celestial sphere, expressed in degrees or hours.
- right-hand buoy — a distinctive buoy marking the side of a channel regarded as the right, or starboard, side.
- rocket launcher — a tube attached to a weapon for the launching of rockets.
- roentgenography — roentgenogram.
- roll in the hay — a document of paper, parchment, or the like, that is or may be rolled up, as for storing; scroll.
- root and branch — a part of the body of a plant that develops, typically, from the radicle and grows downward into the soil, anchoring the plant and absorbing nutriment and moisture.
- root-and-branch — a part of the body of a plant that develops, typically, from the radicle and grows downward into the soil, anchoring the plant and absorbing nutriment and moisture.
- rough and ready — rough, rude, or crude, but good enough for the purpose: a rough-and-ready estimate of future expenses.
- rough breathing — the symbol (ʿ) used in the writing of Greek to indicate aspiration of the initial vowel or of the ρ (rho) over which it is placed.
- rough-and-ready — rough, rude, or crude, but good enough for the purpose: a rough-and-ready estimate of future expenses.
- round character — a character in fiction whose personality, background, motives, and other features are fully delineated by the author.
- roundheadedness — the state of having a round head
- rowland heights — a city in SW California, near Los Angeles.
- rubbing alcohol — a poisonous solution of about 70 percent isopropyl or denatured ethyl alcohol, usually containing a perfume oil, used chiefly in massaging.
- saint-john-lake — Henry, 1st Viscount Bolingbroke, Bolingbroke, 1st Viscount.
- sandwich course — A sandwich course is an educational course in which you have periods of study between periods of being at work.
- sarcenchymatous — relating to the connective tissue of some sponges
- scatter cushion — Scatter cushions are small cushions for use on sofas and chairs.
- schillerization — the process of altering crystals to produce schiller
- schola cantorum — an ecclesiastical choir or choir school.
- school teaching — School teaching is the work done by teachers in a school.
- schopenhauerian — Arthur [ahr-too r] /ˈɑr tʊər/ (Show IPA), 1788–1860, German philosopher.