12-letter words containing a, d, p, o
- pseudorabies — a highly contagious, usually fatal disease of cattle, sheep, and other animals, caused by the herpesvirus Herpes suis, and characterized by severe pruritus and progressive central nervous system involvement sometimes including an aggressive excitement phase.
- pseudorandom — noting or pertaining to random numbers generated by a definite computational process to satisfy a statistical test.
- pseudoscalar — a scalar quantity that changes sign when the sense of the orientation of the coordinate system is changed.
- pteridomania — an excessive enthusiasm for ferns
- pteroic acid — a crystalline acid found in spinach
- punditocracy — influential media pundits collectively.
- push forward — keep advancing
- put to death — the act of dying; the end of life; the total and permanent cessation of all the vital functions of an organism. Compare brain death.
- pyramidology — a belief system based on the supposed occult significance of the Egyptian pyramids
- pyridoxamine — a metabolic form of pyridoxine
- pyritohedral — of or relating to a pyritohedron
- quadraphonic — of, noting, or pertaining to the recording and reproduction of sound over four separate transmission or direct reproduction channels instead of the customary two of the stereo system: a quadraphonic recording.
- quadriphonic — quadraphonic.
- quadrophonic — Alternative spelling of quadraphonic.
- radiator cap — a cap in the opening of a device for cooling an internal-combustion engine, through which coolant liquid can be added
- radiographer — X-ray technician
- radioisotope — a radioactive isotope, usually artificially produced: used in physical and biological research, therapeutics, etc.
- radiophonist — a person who produces radiophonic music
- radiotherapy — treatment of disease by means of x-rays or of radioactive substances.
- railroad pen — a ruling pen for drawing two parallel lines.
- rapeseed oil — a brownish-yellow oil obtained by expression from rapeseed and used chiefly as a lubricant, an illuminant, and in the manufacture of rubber substitutes.
- read up (on) — to become well informed (about) by reading
- readaptation — the act of adapting.
- reciprocated — to give, feel, etc., in return.
- repeat order — request to buy sth again
- respondentia — a loan upon a ship's cargo, which is repaid with interest if the ship reaches its destination, and if the ship does not, the loan is not repaid
- rhabdosphere — a minute sphere made up of rhabdoliths
- ripe old age — advanced age
- road company — a theatrical group that tours cities and towns, usually performing a single play that is or has been a success in New York City.
- road pricing — Road pricing is a system of making drivers pay money for driving on certain roads by electronically recording the movement of vehicles on those roads.
- road sweeper — a person who sweeps roads
- royal pardon — release from punishment for an offence, granted by a monarch
- saddle point — a point at which a function of two variables has partial derivatives equal to zero but at which the function has neither a maximum nor a minimum value.
- safe-deposit — providing safekeeping for valuables: a safe-deposit vault.
- sago pudding — a sweet pudding made with sago and milk
- sapindaceous — belonging to the Sapindaceae, the soapberry family of plants.
- scouring pad — a small pad, as of steel wool or plastic mesh, used for scouring pots, pans, etc.
- scraperboard — scratchboard.
- scsi adaptor — (hardware) (Or "host adaptor") A device that communicates between a computer and its SCSI peripherals. The SCSI adaptor is usually assigned SCSI ID 7. It is often a separate card that is connected to the computer's bus (e.g. PCI, ISA, PCMCIA) though increasinly, SCSI adaptors are built in to the motherboard. Apart from being cheaper, busses like PCI are too slow to keep up with the newer SCSI standards like Ultra SCSI and Ultra-Wide SCSI. There are several varieties of SCSI (and their connectors) and an adaptor will not support them all. The performance of SCSI devices is limited by the speed of the SCSI adaptor and its connection to the computer. An adaptor that plugs into a parallel port is unlikely to be as fast as one incorporated into a motherboard. Fast adaptors use DMA or bus mastering. Some SCSI adaptors include a BIOS to allow PCs to boot from a SCSI hard disk, if their own BIOS supports it. Note that it is not a "SCSI controller" - it does not control the devices, and "SCSI interface" is redundant - the "I" of "SCSI" stands for "interface".
- shadow price — the calculated price of a good or service for which no market price exists
- shadowgraphy — the production of a shadowgraph
- shop steward — commerce: union rep
- shoulder pad — clothing: insert in shoulder
- siderography — the art or technique of engraving on steel.
- sindonophany — the periodic exhibiting to the public of the shroud that the body of Christ is thought to have been wrapped in
- sleep around — to take the rest afforded by a suspension of voluntary bodily functions and the natural suspension, complete or partial, of consciousness; cease being awake.
- sloped roman — a roman (vertical) typeface, usually sans serif, i.e. without the small, decorative, terminal strokes with which some typefaces are designed. The typeface is made to slope (usually to the right), but not generally to the same degree as a true italic typeface
- snow leopard — a long-haired, leopardlike feline, Panthera (Uncia) uncia, of mountain ranges of central Asia, having a relatively small head and a thick, creamy-gray coat with rosette spots: an endangered species.
- span loading — the act of a person or thing that loads.
- speedboating — the act, practice, or sport of traveling in a speedboat.