15-letter words containing i, n, a, c, o
- opencast mining — mining by excavating from the surface
- opening balance — the amount of money in an account at the start of an accounting period
- operating cycle — the period of time between starting a business and making a profit
- optical printer — a film printer used in making optical effects, consisting basically of a camera that photographs the image with special lenses to enlarge, reduce, distort, etc., and a projector that transfers the image to the print stock, as distinguished from a contact printer.
- optical pumping — a method for increasing the number of atoms or molecules occupying higher energy levels by irradiating them with light of the proper frequencies to raise them to those levels.
- 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 tooling — the technique of establishing precise reference lines and planes by means of telescopic sights, especially for the purpose of aligning machinery, machine-shop work, etc.
- opus anglicanum — fine embroidery, esp of church vestments, produced in England c.1200–c.1350; characterized by the rich materials used, esp silver gilt thread
- orange chromide — an Asian cichlid fish, Etropus maculatus, with a brownish-orange spotted body
- orchestrational — Of or pertaining to orchestration.
- ordinary income — taxable income, as salary and wages, other than capital gains.
- organic disease — a disease in which there is a structural alteration (opposed to functional disease).
- organic farming — farming with organic methods
- organized chaos — a complex situation or process that appears chaotic while having enough order to achieve progress or goals
- organized crime — illegal activities co-ordinated by groups
- organochlorines — Plural form of organochlorine.
- organomercurial — an organic compound containing mercury
- oriental carpet — Oriental rug.
- orthodontically — from an orthodontic point of view
- oval of cassini — the locus of a point such that the product of the distances from the point to two fixed points is constant.
- over-analytical — pertaining to or proceeding by analysis (opposed to synthetic).
- over-compliance — the act of conforming, acquiescing, or yielding.
- over-extraction — an act or instance of extracting: the extraction of a molar.
- overachievement — to perform, especially academically, above the potential indicated by tests of one's mental ability or aptitude.
- overapplication — excessive application
- overcommunicate — to communicate excessively
- overcultivation — the act or art of cultivating.
- overexpectation — excessive expectation
- overspeculation — the contemplation or consideration of some subject: to engage in speculation on humanity's ultimate destiny.
- oxytetracycline — a dull-yellow, crystalline antibiotic powder, C 2 2 H 2 4 N 2 O 9 , produced by Streptomyces rimosus, used chiefly in treating infections caused by streptococci, staphylococci, Gram-negative bacilli, rickettsiae, and certain protozoans and viruses.
- pacific madrone — any of several evergreen trees belonging to the genus Arbutus, of the heath family, especially A. menziesii (Pacific madrone) of western North America, having red, flaky bark and bearing edible reddish berries.
- painter's colic — Pathology. lead poisoning causing intense intestinal pain.
- pair production — Physics. the simultaneous creation of a particle and its antiparticle by a nucleus or particle in an excited state, as when a photon is absorbed.
- pairs champions — competitors in or winners of a pairs championship
- palaeoanthropic — relating to palaeoanthropology
- paleolithic man — any of the prehistoric populations of humans, as the Cro-Magnon, living in the late Pliocene and the Pleistocene epochs.
- palindromically — a word, line, verse, number, sentence, etc., reading the same backward as forward, as Madam, I'm Adam or Poor Dan is in a droop.
- palynologically — from a palynological point of view
- panoramic sight — an artillery sight that can be rotated horizontally in a full circle.
- pantopragmatics — universal intervention in the affairs of others
- parallel cousin — a cousin who is the child either of one's mother's sister or of one's father's brother.
- parking offence — the act of leaving your car somewhere illegally
- parthenogenetic — development of an egg without fertilization.
- participational — involving participation
- past continuous — past progressive.
- peace offensive — an active program, policy, propaganda campaign, etc., by a national government for the purpose of terminating a war or period of hostility, lessening international tensions, or promoting peaceful cooperation with other nations.
- peak production — the maximum production
- pelargonic acid — a colorless, oily, water-immiscible liquid, C 9 H 1 8 O 2 , occurring as an ester in a volatile oil in species of pelargonium: used chiefly in organic synthesis and in the manufacture of lacquers and plastics.
- personification — the attribution of human nature or character to animals, inanimate objects, or abstract notions, especially as a rhetorical figure.
- phantom circuit — a circuit derived from two suitably arranged pairs of wires, each pair being a circuit (side circuit) and also acting as one half of an additional derived circuit, the entire system providing the capabilities of three circuits while requiring wires for only two.