19-letter words containing a, l, r, m, c, o
- party-column ballot — Indiana ballot.
- paumotu archipelago — Tuamotu Archipelago.
- phenylthiocarbamide — a crystalline, slightly water-soluble solid, C 6 H 5 NHCSNH 2 , that is either tasteless or bitter, depending upon the heredity of the taster, and is used in medical genetics and as a diagnostic.
- pilgrimage of grace — a rebellion in 1536 in N England against the Reformation and Henry VIII's government
- plastic deformation — In plastic deformation a material changes shape when a stress is applied to it and does not go back to its original state when the stress is removed.
- pneumoencephalogram — an encephalogram made after the replacement of the cerebrospinal fluid by air or gas, rarely used since the development of the CAT scanner.
- prismatic telescope — a telescope having an eyepiece at the side or top equipped with a reflecting prism, used for taking sights at steep angles.
- production platform — offshore power station
- quantum electronics — the application of quantum mechanics and quantum optics to the study and design of electronic devices
- radiopharmaceutical — any of a number of radioactive drugs used diagnostically or therapeutically.
- rec room (or hall) — recreation room (or hall)
- recessional moraine — a moraine marking a temporary halt in the general retreat of a glacier.
- relative complement — the set of elements contained in a given set that are not elements of another specified set.
- removable cartridge — a hard disk enclosed in a case that can be removed from the disk drive, having more storage than floppy disks.
- republic of vietnam — the name (from 1955–75) for South Vietnam, as an independent republic, following the division of the country in 1954 into North Vietnam and South Vietnam
- reticular formation — a network of neurons in the brainstem involved in consciousness, regulation of breathing, the transmission of sensory stimuli to higher brain centers, and the constantly shifting muscular activity that supports the body against gravity.
- self-discrimination — an act or instance of discriminating, or of making a distinction.
- semiconductor laser — a laser in which a semiconductor is the light-emitting source, used in many medical procedures.
- sharp-focus realism — photorealism.
- simple carbohydrate — a carbohydrate, as glucose, that consists of a single monosaccharide unit.
- spherical astronomy — the branch of astronomy dealing with the determination of the positions of celestial bodies on the celestial sphere.
- steamroller tactics — repressive tactics
- sternocleidomastoid — of, relating to, or involving the sternum, the clavicle, and the mastoid process.
- telescopic umbrella — an umbrella having parts that telescope
- torricellian vacuum — the vacuum at the top of a Torricellian tube
- tuamotu archipelago — a group of about 80 coral islands in the S Pacific, in French Polynesia. Pop: 15 973 (2002; including the Gambier Islands). Area: 860 sq km (332 sq miles)
- ultramicrochemistry — the branch of microchemistry dealing with minute quantities of material weighing one microgram or less.
- victor emmanuel iii — 1869–1947, king of Italy 1900–46.
- vinculum matrimonii — the bond of matrimony.
- volumetric analysis — determination of the concentration, by volume, of a substance in a solution, as by titration.