15-letter words containing r, o, s, a, l
- north australia — a former division of Australia; now part of the Northern Territory.
- north highlands — a town in central California, near Sacramento.
- north las vegas — a city in S Nevada.
- northeastwardly — Towards the northeast.
- northwestwardly — Towards the northwest.
- not necessarily — If you reply 'Not necessarily', you mean that what has just been said or suggested may not be true.
- nuclear fission — fission (def 2).
- observationally — of, relating to, or founded on observation, especially founded on observation rather than experiment.
- obstacle course — a military training area having obstacles, as hurdles, ditches, and walls, that must be surmounted or crossed in succession.
- obtuse triangle — a triangle with one obtuse angle.
- official strike — a collective stoppage of work by part or all of the workforce of an organization with the approval of the trade union concerned. The stoppage may be accompanied by the payment of strike pay by the trade union concerned
- olbers' paradox — the paradox that if the universe consisted of an infinite number of stars equally distributed through space, then every line of sight would come from a star and the night sky would glow uniformly, which is observationally not true.
- old man's beard — fringe tree.
- old-man's-beard — fringe tree.
- oligohydramnios — (medicine) A deficit of amniotic fluid in the amniotic sac, causing distinctive deformations of the foetus.
- oligomerisation — Alternative spelling of oligomerization.
- oligosaccharide — any carbohydrate yielding few monosaccharides on hydrolysis, as two, three, or four.
- one's last hour — the time of one's death
- operationalised — Simple past tense and past participle of operationalise.
- optical scanner — the process of interpreting data in printed, handwritten, bar-code, or other visual form by a device (optical scanner or reader) that scans and identifies the data.
- optical storage — optical disk drive
- orchestrational — Of or pertaining to orchestration.
- ordinal numbers — Also called ordinal numeral. any of the numbers that express degree, quality, or position in a series, as first, second, and third (distinguished from cardinal number).
- organochlorines — Plural form of organochlorine.
- outside caliper — a caliper whose legs turn inward so that it can measure outside dimensions, as the diameter of a rod.
- over-capitalise — to fix the total amount of securities of a corporation in excess of the limits set by law or by sound financial policy.
- overcapitalizes — Third-person singular simple present indicative form of overcapitalize.
- overspeculation — the contemplation or consideration of some subject: to engage in speculation on humanity's ultimate destiny.
- overstimulation — to rouse to action or effort, as by encouragement or pressure; spur on; incite: to stimulate his interest in mathematics.
- overzealousness — too zealous: overzealous for reform.
- ovoviviparously — in an ovoviviparous manner
- painter's colic — Pathology. lead poisoning causing intense intestinal pain.
- pamprodactylous — having all four toes directed forward, as in swifts and colies.
- paradise flower — a prickly vine, Solanum wendlandii, of the nightshade family, native to Costa Rica, having branched clusters of showy lilac-blue flowers.
- paralation lisp — Embeds the paralation model in Common LISP. Available from MIT Press, (800)356-0343.
- parallel cousin — a cousin who is the child either of one's mother's sister or of one's father's brother.
- parkinson's law — the statement, expressed facetiously as if a law of physics, that work expands to fill the time allotted for its completion.
- passifloraceous — of, relating to, or belonging to the Passifloraceae, a tropical and subtropical family of climbing plants including the passionflowers: the flowers have five petals and threadlike parts forming a dense mass (corona) around the central disc
- passport holder — a person who has a passport
- pastel-coloured — pale-coloured; in a shade such as pink or pale blue
- pastoral letter — pastoral (defs 11, 12).
- pastoral prayer — the main prayer in a church service.
- pastoralization — to make pastoral or rural.
- paurometabolous — designating or of a group of insect orders, as orthopterans or hemipterans, in which metamorphosis to the adult state from the juvenile state is gradual and without any sudden, radical change of body form
- pectoral muscle — muscle of the chest
- perissosyllabic — (of a line of verse) containing more syllables than expected for the metre being used
- personal column — The personal column in a newspaper or magazine contains messages for individual people and advertisements of a private nature.
- personal estate — movable property
- personal friend — a person who is a friend, rather than a colleague or acquaintance
- personal growth — development as an individual