15-letter words containing a, n, i, g
- 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
- orange milkweed — butterfly weed (def 1).
- ordinary degree — a university degree without honours
- ordinary rating — a rank in the Royal Navy comparable to that of a private in the army
- 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
- organized labor — all workers who are organized in labor unions.
- organochlorines — Plural form of organochlorine.
- organomagnesium — pertaining to or noting an organic compound, especially an organic halide, containing magnesium linked to carbon.
- organomercurial — an organic compound containing mercury
- origination fee — a fee charged by a lender for evaluating and processing a loan application, usually a percentage of the face value of the loan.
- otaheite orange — a small citrus bush, Citrus limonia otaitensis, having fragrant flowers and small orange fruit, often cultivated as a houseplant.
- out of training — become unfit
- outline drawing — a drawing consisting only of external lines
- outstandingness — prominent; conspicuous; striking: an outstanding example of courage.
- outward-looking — looking beyond oneself; open-minded and reaching out to other people, organizations, etc
- over-irrigation — the artificial application of water to land to assist in the production of crops.
- over-regulation — a law, rule, or other order prescribed by authority, especially to regulate conduct.
- overbearingness — Quality of being overbearing.
- overdramatizing — Present participle of overdramatize.
- overemphasizing — Present participle of overemphasize.
- overimaginative — imaginative to a fault
- overprogramming — the act or instance of programming unnecessary details
- oxidizing agent — a substance that oxidizes another substance, being itself reduced in the process. Common oxidizing agents are oxygen, hydrogen peroxide, and ferric salts
- pachymeningitis — inflammation of the dura mater of the brain and spinal cord
- packing density — a measure of the amount of data that can be held by unit length of a storage medium, such as magnetic tape
- paedophile ring — a group of people who take part in illegal sexual activity involving children
- painted bunting — a brilliantly colored bunting, Passerina ciris, of the southern U.S.
- palaeolimnology — the study of ancient lake ecologies
- palaeomagnetism — the study of the fossil magnetism in rocks, used to determine the past configurations of the continents and to investigate the past shape and magnitude of the earth's magnetic field
- palaeomagnetist — a student of or expert in palaeomagnetism
- 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
- paphian goddess — Aphrodite, worshiped in Cyprus as the goddess of sexual love.
- paralinguistics — the study of paralanguage.
- parish magazine — a magazine containing news and articles of interest to the people of a particular parish church or the local area
- parking offence — the act of leaving your car somewhere illegally
- parthenogenesis — development of an egg without fertilization.
- parthenogenetic — development of an egg without fertilization.
- passenger train — railway train that carries people
- passive smoking — the inhaling of cigarette, cigar, and pipe smoke of others, especially by a nonsmoker in an enclosed area.
- patagonian hare — a burrowing, gray, long-eared and long-legged cavy of the genus Dolichotis, native to South America.
- patent engineer — a person who draws up applications for patents
- pattern bombing — aerial bombing in which bombs are dropped on a target in a predetermined pattern.
- pedagoguishness — the quality of being pedagoguish