15-letter words containing o, a, m, p
- suboptimization — a situation which is less than optimal
- sumatra camphor — borneol.
- superpatriotism — the quality of being superpatriotic
- supplementation — the act or process of supplementing.
- swamp white oak — an oak, Quercus bicolor, of eastern North America, yielding a hard, heavy wood used in shipbuilding, for making furniture, etc.
- sympathetectomy — sympathectomy.
- sympathomimetic — mimicking stimulation of the sympathetic nervous system.
- symptomatically — pertaining to a symptom or symptoms.
- symptomological — relating to symptomology
- system operator — a person who maintains a computer system or network, especially one who operates a computer bulletin board.
- tablet computer — a number of sheets of writing paper, business forms, etc., fastened together at the edge; pad.
- talcum (powder) — a powder for the body and face made of powdered, purified talc, usually perfumed
- tandem-compound — (of a compound engine or turbine) having high-pressure and low-pressure units in tandem.
- tetrasporangium — a sporangium containing four asexual spores.
- theatre company — an organization that produces theatrical performances
- thermobarograph — a device that simultaneously records the temperature and pressure of the atmosphere
- thermogeography — the study of the geographical variation and distribution of temperature.
- thomas à kempis — Thomas à, 1379?–1471, German ecclesiastic and author.
- to part company — If two or more people part company, they go in different directions after going in the same direction together.
- to take up arms — If one group or country takes up arms against another, they prepare to attack and fight them.
- topgallant mast — a mast fixed to the head of a topmast on a square-rigged vessel.
- topographic map — a map showing topographic features, usually by means of contour lines.
- trading company — a company that is owned by the people who have bought shares in that company
- trypanosomiasis — any infection caused by a trypanosome.
- ultramicroscope — an instrument that uses scattering phenomena to detect the position of objects too small to be seen by an ordinary microscope.
- ultramicroscopy — the use of the ultramicroscope.
- umbrella policy — An umbrella policy is a policy that provides excess limits and gives additional excess coverage over the normal limits and coverage of liability policies.
- uncompanionable — not companionable or friendly; antisocial
- uncompassionate — having or showing compassion: a compassionate person; a compassionate letter.
- 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
- undercompensate — to compensate or pay less than is fair, customary, or expected.
- unsportsmanlike — a man who engages in sports, especially in some open-air sport, as hunting, fishing, racing, etc.
- upperclasswoman — An upperclasswoman is a junior or senior student in a high school, college, or university.
- upward mobility — movement from one social level to a higher one (upward mobility) or a lower one (downward mobility) as by changing jobs or marrying.
- upwardly mobile — See under vertical mobility (def 1).
- utility company — a company which supplies utilities, such as gas, electricity, phones, etc
- utility program — system software used to perform standard operations, as sorting data or copying data from one file to another, for application programs or other system software.
- vernier compass — a compass on a transit (vernier transit) having a vernier for adjusting magnetic bearings to read as true bearings.
- washington palm — a palm tree, Washingtonia filifera, of California and Florida, having large fan-shaped leaves and small black fruits