19-letter words containing a, d, l, i, t, e
- optical double star — two stars that appear as one if not viewed through a telescope with adequate magnification, such as two stars that are separated by a great distance but are nearly in line with each other and an observer (optical double star) or those that are relatively close together and comprise a single physical system (physical double star)
- optical mark reader — (hardware) (OMR) A special scanning device that can read carefully placed pencil marks on specially designed documents. OMR is frequenty used in forms, questionnaires, and answer-sheets.
- oxidation potential — (in a galvanic cell) the potential of the electrode at which oxidation occurs.
- parliament building — structure housing legislative offices
- particle dispersoid — A particle dispersoid is a suspension of solid particles in a gas.
- peridental membrane — periodontal membrane.
- periodontal disease — any of various mixed bacterial infections that affect the soft tissues and bones supporting the teeth.
- peritoneal dialysis — a form of dialysis in which the peritoneum is used as an autogenous semipermeable membrane
- perpetual adoration — uninterrupted adoration of the Blessed Sacrament.
- 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.
- pileated woodpecker — a large, black-and-white American woodpecker, Dryocopus pileatus, having a prominent red crest.
- pistol-handle knife — a table knife, especially of the 18th century, having a slightly curved handle resembling the grip of a flintlock pistol.
- 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.
- play the devil with — Theology. (sometimes initial capital letter) the supreme spirit of evil; Satan. a subordinate evil spirit at enmity with God, and having power to afflict humans both with bodily disease and with spiritual corruption.
- police headquarters — building where police are stationed
- post-and-rail fence — a fence constructed of upright wooden posts with horizontal timber slotted through it
- preproduction trial — a trial to test a prototype of a product before the product goes into full-scale production
- pseudo-experimental — pertaining to, derived from, or founded on experiment: an experimental science.
- pseudo-intellectual — a person exhibiting intellectual pretensions that have no basis in sound scholarship.
- radiation potential — the potential in volts that must be applied to an atom or molecule to cause it to emit radiation at one of its characteristic frequencies.
- radioactive fallout — the settling to the ground of airborne particles ejected into the atmosphere from the earth by explosions, eruptions, forest fires, etc., especially such settling from nuclear explosions (radioactive fallout) Compare rainout.
- radiopharmaceutical — any of a number of radioactive drugs used diagnostically or therapeutically.
- reduction potential — (in a galvanic cell) the potential of the electrode at which reduction occurs.
- registered disabled — on a local authority register under the Chronically Sick and Disabled Persons Act 1970
- reindustrialization — the revitalization of an industry or industrial society through government aid and tax incentives, modernization of factories and machinery, etc.
- relational database — an electronic database comprising multiple files of related information, usually stored in tables of rows (records) and columns (fields), and allowing a link to be established between separate files that have a matching field, as a column of invoice numbers, so that the two files can be queried simultaneously by the user.
- relative impediment — a fact or circumstance that disqualifies from lawful marriage persons who are closely related.
- religious education — religion as school subject
- removable cartridge — a hard disk enclosed in a case that can be removed from the disk drive, having more storage than floppy disks.
- reticulated tracery — tracery consisting in large part of a netlike arrangement of repeated geometrical figures.
- reticuloendothelial — pertaining to, resembling, or involving cells of the reticuloendothelial system.
- rickettsial disease — any of several acute infectious diseases caused by ticks, mites, or body lice infected with rickettsiae. The main types include typhus, spotted fever, Q fever, trench fever, and tsutsugamushi disease
- romanian tenderloin — a cut of beef consisting of the diaphragm muscle.
- saddle-billed stork — a large stork, Ephippiorhynchus senegalensis, of West Africa, having a white and black body and a long, red and black bill.
- san clemente island — an island off the coast of S California, in the Santa Barbara (Channel) Islands. 24 miles (38 km) long.
- santiago del estero — a city in N Argentina.
- screen actors guild — a labor union for motion-picture performers, founded in 1933. Abbreviation: SAG.
- secondary qualities — one of the qualities attributed by the mind to an object perceived, such as color, temperature, or taste.
- self identification — identification of oneself with some other person or thing.
- self-administration — the management of any office, business, or organization; direction.
- self-aggrandizement — increase of one's own power, wealth, etc., usually aggressively.
- self-discrimination — an act or instance of discriminating, or of making a distinction.
- self-identification — identification of oneself with some other person or thing.
- semiconductor laser — a laser in which a semiconductor is the light-emitting source, used in many medical procedures.
- semipalmated plover — a New World plover, Charadrius semipalmatus, having a black ring around the chest and semipalmate feet, inhabiting beaches and salt marshes.
- senatorial district — one of a fixed number of districts into which a state of the U.S. is divided, each electing one member to the state senate.
- sessional indemnity — the remuneration paid to a member of the Canadian parliament.
- sexual reproduction — reproduction involving the union of gametes.
- sharp-tailed grouse — a grouse, Pedioecetes phasianellus, of prairies and open forests of western North America, similar in size to the prairie chicken but with a more pointed tail.
- shield-tailed snake — any of several burrowing snakes of the family Uropeltidae, of the Indian peninsula and Sri Lanka, having a tail that ends in a flat disk.