15-letter words containing r, o, s, a, l
- military school — military academy.
- millionairesses — Plural form of millionairess.
- misarticulation — an act or the process of articulating: the articulation of a form; the articulation of a new thought.
- mitral stenosis — abnormal narrowing of the mitral valve usually resulting from disease, as rheumatic fever, and obstructing the free flow of blood from the atrium to the ventricle.
- moccasin flower — the lady's-slipper.
- mole salamander — ambystomid.
- molecular sieve — a compound with molecule-size pores, as some sodium aluminum silicates, that chemically locks molecules in them: used in purification and separation processes.
- monoculturalism — The practice of actively preserving a culture to the exclusion of external influences.
- morale-boosting — A morale-boosting action or event makes people feel more confident and cheerful.
- morelos y pavon — José María [haw-se mah-ree-ah] /hɔˈsɛ mɑˈri ɑ/ (Show IPA), 1765–1815, Mexican priest and revolutionary leader.
- most honourable — a courtesy title applied to marquesses and members of the Privy Council and the Order of the Bath
- mules operation — the surgical removal of folds of skin in the breech of a sheep to reduce blowfly strike
- multiflora rose — a climbing or trailing rose, Rosa multiflora, of Japan and Korea, having hooked prickles and fragrant, dense clusters of flowers.
- myofibroblastic — Relating to myofibroblasts.
- name resolution — (networking) The process of mapping a name into its corresponding address. The Domain Name System is the system which does name resolution on the Internet.
- nanocrystalline — Of, pertaining to, or composed of nanocrystals.
- napoleonic wars — French-led war in early 19th century
- natal horoscope — the horoscope based on an individual's birth.
- national forest — forested land owned, maintained, and preserved by the U.S. government.
- natural history — the sciences, as botany, mineralogy, or zoology, dealing with the study of all objects in nature: used especially in reference to the beginnings of these sciences in former times.
- nearly-new shop — a shop that sells secondhand clothes and other objects
- necessary stool — close-stool.
- necrobacillosis — any disease of cattle, horses, sheep, and swine marked by necrotic areas in which a bacillus, Fusobacterium necrophorum, is found.
- negro spiritual — a type of religious song originating among Black slaves in the American South
- neo-lutheranism — a movement begun in the 19th century in Germany and Scandinavia to revive the orthodox principles, beliefs, and practices of the Lutheran Church.
- neomercantilism — an economic doctrine or policy during the early 20th century that set high tariffs and other import restrictions in order to protect domestic industries.
- nephrolithiasis — (pathology) presence of calculi in kidneys.
- net.personality — Someone who has made a name for him or herself on Usenet, through either longevity or attention-getting posts, but doesn't meet the other requirements of net.godhood.
- neural networks — any group of neurons that conduct impulses in a coordinated manner, as the assemblages of brain cells that record a visual stimulus.
- neuroplasticity — the capacity of the nervous system to develop new neuronal connections: research on neuroplasticity of the brain after injury.
- newton's cradle — an ornamental puzzle consisting of a frame in which five metal balls are suspended in such a way that when one is moved it sets all the others in motion in turn
- nicholas ridley — Nicholas, c1500–55, English bishop, reformer, and martyr.
- nicobar islands — a group of 19 islands in the Indian Ocean, south of the Andaman Islands, with which they form a territory of India. Area: 1645 sq km (635 sq miles)
- no holds barred — to have or keep in the hand; keep fast; grasp: She held the purse in her right hand. He held the child's hand in his.
- non-adversarial — a person, group, or force that opposes or attacks; opponent; enemy; foe.
- non-chromosomal — any of several threadlike bodies, consisting of chromatin, that carry the genes in a linear order: the human species has 23 pairs, designated 1 to 22 in order of decreasing size and X and Y for the female and male sex chromosomes respectively.
- non-crystalline — of or like crystal; clear; transparent.
- non-ministerial — pertaining to the ministry of religion, or to a minister or other member of the clergy.
- non-rationalism — the principle or habit of accepting reason as the supreme authority in matters of opinion, belief, or conduct.
- non-residential — of or relating to residence or to residences: a residential requirement for a doctorate.
- non-shareholder — a holder or owner of shares, especially in a company or corporation.
- non-traversable — to pass or move over, along, or through.
- nonastronomical — not astronomical
- nondisciplinary — of, for, or constituting discipline; enforcing or administering discipline: disciplinary action.
- noninstrumental — serving or acting as an instrument or means; useful; helpful.
- nonprofessional — not a member of or trained in a specific profession.
- nonprofessorial — not professorial
- nonrelativistic — not concerned with or involving the theory of relativity
- nontransferable — Not transferable; not able to be transferred.
- normally-closed — Normally-closed switch contacts are in a closed state at rest.