12-letter words containing p, r, o, k
- aeroplankton — the tiny plants, animals, and bacteria living and floating in the air
- alkaptonuria — excessive excretion of homogentisic acid in the urine, caused by a hereditary abnormality of the metabolism of tyrosine and phenylalanine.
- appleknocker — Northern U.S. a rustic.
- arapaho peak — a mountain in N Colorado, in the Front Range of the Rocky Mountains W of Boulder. 13,506 feet (4119 meters).
- asphalt rock — a rock formation, usually of limestone or sandstone, containing large amounts of bitumens.
- black copper — a regulus of 95-percent-pure copper, produced in a blast furnace by smelting oxidized copper ores.
- black poplar — a Eurasian tree, Populus nigra
- black powder — gunpowder as used in sports involving modern muzzleloading firearms
- bobbery pack — a mixed pack of hunting dogs, often not belonging to any of the hound breeds
- cape nordkyn — a cape in N Norway: the northernmost point of the European mainland
- cargo pocket — a large patch pocket, usually pleated at the sides and often having a flap.
- chapter book — a children's book, typically a work of fiction, of moderate length and complexity, divided into chapters and intended for readers approximately seven to ten years old
- cock sparrow — a male sparrow
- college park — a city in N Georgia.
- computerlike — similar to a computer
- cookie press — a device, operating in a manner similar to that of a syringe, in which dough is inserted in a chamber and extruded, by means of a plunger, through one of a number of interchangeable dies to form a shaped cylinder that is sliced into individual cookies.
- cooper creek — an intermittent river in E central Australia, in the Channel Country: rises in central Queensland and flows generally southwest, reaching Lake Eyre only during wet-year floods; scene of the death of the explorers Burke and Wills in 1861; the surrounding basin provides cattle pastures after the floods subside. Total length: 1420 km (880 miles)
- country park — an area of countryside, usually not less than 10 hectares, set aside for public recreation: often funded by a Countryside Commission grant
- cryoplankton — minute organisms, esp algae, living in ice, snow, or icy water
- cryptolocker — (security) The best known example of the kind of malware known as ransomware. CryptoLocker encrypts files on your computer and then demands that you send the malware operator money in order to have the files decrypted. According to FBI estimates, CryptoLocker had more than 500,000 victims between September 2013 and May 2014. Around 1.3 percent paid to free their files, earning the malware makers around $3 million. The criminal network was smashed by authorities and security researchers in May 2014 and a tool put online to decryt victim's files for free.
- dockwalloper — longshoreman
- drop a brick — a block of clay hardened by drying in the sun or burning in a kiln, and used for building, paving, etc.: traditionally, in the U.S., a rectangle 2.25 × 3.75 × 8 inches (5.7 × 9.5 × 20.3 cm), red, brown, or yellow in color.
- eriskay pony — a breed of medium-sized pony, typically grey, with a dense waterproof coat. The Eriskay is the only surviving variety of the native ponies of the Western Isles of Scotland
- floor pocket — one of several metal boxes placed backstage in the floor (floor pocket) or wall of a theater and containing jacks for electric cables used in lighting units.
- flowerpecker — any of numerous small, arboreal, usually brightly colored oscine birds of the family Dicaeidae, of southeastern Asia and Australia.
- fort pickens — Andrew, 1739–1817, American Revolutionary general.
- fort pulaski — Count Casimir [kaz-uh-meer] /ˈkæz əˌmɪər/ (Show IPA), 1748–79, Polish patriot; general in the American Revolutionary army.
- gopher snake — a bullsnake, Pituophis melanoleucus, of western North America, that invades burrows to prey on rodents.
- groundkeeper — groundskeeper.
- hanover park — a city in NE Illinois.
- hickory pine — bristlecone pine.
- hotelkeepers — Plural form of hotelkeeper.
- housekeepers — Plural form of housekeeper.
- joking apart — seriously: said to recall a discussion to seriousness after there has been joking
- kangaroo paw — any plant of the Australian genus Anigozanthos, resembling a kangaroo's paw, esp the red-and-green flowered A. manglesii, which is the floral emblem of Western Australia: family Haemodoraceae
- karyomapping — a technique for determining whether an embryo has inherited a genetic defect by analysing DNA taken from it and its close relatives
- katamorphism — metamorphism at or near the earth's surface: breaks down complex minerals into simpler ones.
- keeping room — hall (def 11).
- keratoplasty — plastic surgery performed upon the cornea, especially a corneal transplantation.
- keraunograph — an instrument for recording thunderstorms by detecting the radio waves generated
- ketone group — the characteristic group occurring in ketones that consists of the carbonyl group attached to two alkyl groups.
- kinetography — a camera for taking pictures for a kinetoscope.
- kleptocratic — a government or state in which those in power exploit national resources and steal; rule by a thief or thieves.
- kourotrophos — (archaeology) a class of Mycenaean terracotta figurines depicting women carrying children.
- lark sparrow — a North American sparrow, Chondestes grammacus, having a distinctive brown-and-white facial pattern.
- lincoln park — a city in SE Michigan.
- locker plant — an establishment for storing food under refrigeration, containing lockers for renting to individual users.
- loudspeakers — Plural form of loudspeaker, especially a pair for a left and right channel.
- melrose park — a city in NE Illinois, near Chicago.
- meroplankton — a floating mass of eggs and larvae of organisms that are nektonic or benthic in their adult stage; temporary plankton.
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