15-letter words containing p, o, l, n, a
- special session — a session, as of a legislature or council, called to meet in addition to those held regularly.
- spinal ganglion — a ganglion on the dorsal root of each spinal nerve, containing the cell bodies of sensory nerves.
- spiral notebook — a notebook held together by a coil of wire passed through small holes punched at the back edge of the covers and individual pages
- spit and polish — great care in maintaining smart appearance and crisp efficiency: The commander was concerned more with spit and polish than with the company's morale.
- splanchnopleure — the double layer formed by the association of the lower layer of the lateral plate of mesoderm with the underlying entoderm, which develops into the embryonic viscera.
- starting pistol — a pistol used to give the signal to start a race
- subprofessional — being below professional standards: subprofessional health care.
- sulphinpyrazone — a uricosuric drug with molecular formula C23H20N2O3S, used in the treatment of chronic gout
- superexaltation — extreme or supreme exaltation; the act of superexalting; the process or condition of being superexalted
- superior planet — any of the five planets whose orbits are outside the orbit of the earth, namely, the planets Mars, Jupiter, Saturn, Uranus, and Neptune.
- supplementation — the act or process of supplementing.
- sycophantically — a self-seeking, servile flatterer; fawning parasite.
- the colophonian — a native of Colophon.
- tobacco planter — a tool that was formerly used by tobacco farmers to plant tobacco with
- topgallant mast — a mast fixed to the head of a topmast on a square-rigged vessel.
- topgallant sail — a sail or either of two sails set on the yard or yards of a topgallant mast.
- transplantation — to remove (a plant) from one place and plant it in another.
- trifluoperazine — a compound, C 21 H 24 F 3 N 3 S, used as an antipsychotic.
- tropicalization — to make tropical, as in character or appearance.
- ultrasonography — a diagnostic imaging technique utilizing reflected high-frequency sound waves to delineate, measure, or examine internal body structures or organs.
- una corda pedal — soft pedal (def 1).
- unapostolically — in an unapostalic manner
- uncompanionable — not companionable or friendly; antisocial
- uncomplainingly — in an unresentful or resigned manner
- uncomplaisantly — in an uncomplaisant manner
- uncomplementary — forming a complement; completing.
- uncomplimentary — of the nature of, conveying, or expressing a compliment, often one that is politely flattering: a complimentary remark.
- uncompromisable — that cannot or should not be compromised
- uncooperatively — in an uncooperative or unhelpful manner
- uncopyrightable — not able to be copyrighted
- underpopulation — having a population lower than is normal or desirable.
- unexceptionable — not offering any basis for exception or objection; beyond criticism: an unexceptionable record of achievement.
- unleaded petrol — petrol containing a reduced amount of tetraethyl lead
- unpatriotically — in a manner that is not enthusiastically supporting one's country and its ways of life
- unphilosophical — not adhering to philosophical theory or principles
- unpronounceable — to enunciate or articulate (sounds, words, sentences, etc.).
- unsportsmanlike — a man who engages in sports, especially in some open-air sport, as hunting, fishing, racing, etc.
- upper arlington — a city in central Ohio, near Columbus.
- upperclasswoman — An upperclasswoman is a junior or senior student in a high school, college, or university.
- uropygial gland — a gland opening on the back at the base of the tail in most birds that secretes an oily fluid used by the bird in preening its feathers.
- utility company — a company which supplies utilities, such as gas, electricity, phones, etc
- utopia planitia — Astronomy. a plain in the northern hemisphere of Mars that was the landing site of the Viking II space probe on September 3, 1976.
- variola porcina — an acute infectious viral disease of pigs characterized by skin eruptions
- vine phylloxera — a homopterous insect, Phylloxera vitifolia, typically feeding on vine juices
- washing-up bowl — plastic bowl used for washing dishes
- washington palm — a palm tree, Washingtonia filifera, of California and Florida, having large fan-shaped leaves and small black fruits
- water pollution — the pollution of the sea and rivers
- wind-pollinated — being pollinated by airborne pollen.
- windfall profit — a profit that arises thanks to an external event over which the person profiting had no control
- working capital — the amount of capital needed to carry on a business.