15-letter words containing p, o, r, l
- autolithography — a lithographic technique by which the artist draws or traces with a brush and pen directly on a stone or plate.
- automorphically — in an automorphic manner
- autotetraploidy — the generation of the tetraploid state, created by the fusing of two nuclei from the same species
- autotransplants — Plural form of autotransplant.
- autotrophically — through an autotrophic process
- bandstop filter — A bandstop filter is a filter designed to eliminate all frequencies within a band of frequencies.
- be spoiling for — to have an aggressive desire for (a fight, etc)
- bedroom slipper — a soft shoe worn in the house
- beet leafhopper — a small leafhopper (Circulifer tenellus) that transmits a very destructive virus to sugar beets
- beetroot purple — a deep purple-red; a purple pigment derived from beets.
- bibliographical — a complete or selective list of works compiled upon some common principle, as authorship, subject, place of publication, or printer.
- billiard parlor — poolroom (def 1).
- biobibliography — a bibliography containing biographical sketches of the authors listed.
- black operation — a covert and undocumented military operation
- bladder campion — a European caryophyllaceous plant, Silene vulgaris, having white flowers with an inflated calyx
- blasting powder — a form of gunpowder made with sodium nitrate instead of saltpeter, used chiefly for blasting rock, ore, etc.
- blood corpuscle — one of the cells in the blood
- blotch printing — a fabric-printing method in which the ground color is transferred from the cylinder and the motif retains the original hue of the cloth.
- board of parole — an agency that determines which prisoners are to be released on parole
- brachiocephalic — of, relating to, or supplying the arm and head
- branchial pouch — one of a series of rudimentary outcroppings of the inner pharyngeal wall, corresponding to the branchial grooves on the surface.
- breaking plough — a plough with a long shallow mouldboard for turning virgin land or sod land
- bromoil process — a process for making an offset reproduction by first making a photographic print on paper with a silver bromide emulsion, wetting it, and then using it as a lithographic plate, the lighter parts of the emulsion tending to repel the oil base of the ink and the darker parts tending to hold it.
- brussels sprout — Brussels sprouts are vegetables that look like tiny cabbages.
- cache la poudre — a river in N Colorado, flowing N and E to the South Platte River. 126 miles (203 km) long.
- camp counsellor — an adult supervisor assigned to a group of campers at a summer camp
- camphorated oil — a liniment consisting of camphor and peanut oil, used as a counterirritant
- capillarization — The formation and development of a network of capillaries to a part of the body; it is increased by aerobic exercise.
- caprifoliaceous — of, relating to, or belonging to the Caprifoliaceae, a family of N temperate shrubs, small trees, and climbers including honeysuckle, elder, and guelder-rose
- cardinal points — the four main points of the compass: north, south, east, and west
- cardiopulmonary — of, relating to, or affecting the heart and lungs
- carpometacarpal — Anatomy. of or relating to the carpus and the metacarpus.
- cast-iron plant — any of several plants belonging to the genus Aspidistra, of the lily family, native to eastern Asia, especially A. eliator, having large evergreen leaves often striped with white, and grown as a houseplant.
- cell disruption — Cell disruption is when a biological material becomes smaller to release proteins and enzymes.
- cephalochordate — any chordate animal of the subphylum Cephalochordata, having a fishlike body and no vertebral column; lancelet
- cephalothoracic — the anterior part of the body in certain arachnids and crustaceans, consisting of the coalesced head and thorax.
- cephalothoraxes — Plural form of cephalothorax.
- chandler period — the period of the oscillation (Chandler wobble) of the earth's axis, varying between 416 and 433 days.
- charleston peak — a mountain in SE Nevada: highest peak in the Spring Mountains. 11,919 feet (3635 meters).
- chartophylacium — (in a medieval church) a place for the keeping of records and documents.
- chemolithotroph — Chemoautotroph.
- chiropterophily — Pollination by bats.
- chloramphenicol — a broad-spectrum antibiotic used esp in treating typhoid fever and rickettsial infections: obtained from the bacterium Streptomyces venezuelae or synthesized. Formula: C11H12N2O5Cl2
- cholangiography — radiographic examination of the bile ducts after the introduction into them of a contrast medium
- choral speaking — recitation of poetry, dramatic pieces, etc. by a chorus of speakers
- chorale prelude — a composition for organ using a chorale as a cantus firmus or as the basis for variations
- chromium-plated — having been plated with chromium
- chromoxylograph — a coloured print created from printing with wooden blocks
- ciliary process — one of the folds on the ciliary body, connected with the suspensory ligament of the crystalline lens.
- claustrophobics — Plural form of claustrophobic.