15-letter words containing t, a, p, r
- draughtproofing — Present participle of draughtproof.
- draughtsmanship — (British) alternative spelling of draftsmanship.
- drip irrigation — a system of crop irrigation involving the controlled delivery of water directly to individual plants through a network of tubes or pipes.
- dystrophication — the process by which a body of water becomes dystrophic.
- early-type star — any massive hot star of spectral type O, B, or A
- east providence — a town in NE Rhode Island, near Providence.
- edriophthalmian — edriophthalmous
- edriophthalmous — (of certain crustaceans) having stalkless eyes
- edwards plateau — a highland area in SW Texas. 2000–5000 feet (600–1500 meters) high.
- egyptian clover — a Mediterranean clover, Trifolium alexandrinum, grown as a forage crop and to improve the soil in the southwestern US and the Nile valley
- egyptian jasper — a type of jasper, generally with zones of colour, found in desert regions of Egypt
- electra complex — the sexual attachment of a female child to her father
- electra paradox — the supposed paradox that one may know something to be true of an object under one description but not another, as when Electra knew that Orestes was her brother but not that the man before her was her brother although he was Orestes. This shows the predicate "knows" to be intensional, that Electra's knowledge here is de dicto, and that the statement of it yields an opaque context
- electromyograph — A device used in electromyography to generate electromyograms.
- eleutherophobia — the fear of freedom
- enantiomorphism — (chemistry) The relationship exhibited by a pair of enantiomorphs.
- enantiomorphous — Of or pertaining to enantiomorphs or enantiomorphism; enantiomorphic.
- engraving plate — a metal, usually steel, plate on which an image is engraved in order to be reproduced
- enterohepatitis — dual inflammation of the intestine and liver
- enteropeptidase — Enterokinase.
- entrance permit — a permit issued by the government of a country allowing nationals of other countries to enter
- entrepreneurial — Characterized by the taking of financial risks in the hope of profit; enterprising.
- enumerated type — (programming) (Or "enumeration") A type which includes in its definition an exhaustive list of possible values for variables of that type. Common examples include Boolean, which takes values from the list [true, false], and day-of-week which takes values [Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday]. Enumerated types are a feature of strongly typed languages, including C and Ada. Characters, (fixed-size) integers and even floating-point types could be (but are not usually) considered to be (large) enumerated types.
- epicyclic train — a cluster of gears consisting of a central gearwheel with external teeth (the sun), a coaxial gearwheel of greater diameter with internal teeth (the annulus), and one or more planetary gears engaging with both of them to provide a large gear ratio in a compact space
- epikeratophakia — The surgical correction of aphakia. It is a refractive surgical procedure in which a donor cornea is transplanted to the anterior surface of the patient's cornea. A lamellar disc from a donor cornea is placed over the de-epithelialized host cornea and sutured into a prepared groove on the host cornea.
- ergatandromorph — an ant with the characteristics of both worker and male
- evaporated milk — concentrated dairy product
- experientialism — (philosophy) The theory that experience is the source of knowledge.
- experientialist — A proponent of experientialism.
- experimentalism — An experimental practice or tendency, especially in the arts.
- experimentalist — One who performs experiments.
- experimentalize — (transitive) To make experiments upon.
- experimentation — The act of experimenting; practice by experiment.
- experimentative — having a tendency to experiment; experimental; of the nature of an experiment
- expiration date — when food product is no longer fresh
- export earnings — the earnings of a company or country that are generated through the export of goods or services
- extemporisation — Alternative spelling of extemporization.
- extemporization — The act of extemporizing; the act of doing anything extempore.
- external spline — any one of a series of narrow keys formed longitudinally around the circumference of a shaft that fit into corresponding grooves (internal splines) in a mating part: used to prevent movement between two parts, esp in transmitting torque
- fair employment — the policy or practice of employing people on the basis of their capabilities only, without regard to race, color, religion, sex, national origin, age, or disability.
- fairy footsteps — heavy footsteps
- false pretences — fraud, deception
- false pretenses — If you do something under false pretenses, you do it when people do not know the truth about you and your intentions.
- familiar spirit — a supernatural spirit often assuming animal form, supposed to attend and aid a witch, wizard, etc
- family practice — medical specialization in general practice, requiring training beyond that of general practice and leading to board certification.
- farm gate price — the price for the sale of farm produce direct from the producer
- fillister plane — an adjustable plane for cutting rabbets, grooves, etc
- finger alphabet — a series of shapes made by the fingers that indicate letters of an alphabet and can be used in fingerspelling for the deaf
- finger painting — a jellylike paint, used chiefly by children in painting, usually with their fingers.
- fire department — the department of a municipal government charged with the prevention and extinguishing of fire.