15-letter words containing t, h, i, r
- primary teacher — a teacher in a primary school
- private hearing — a formal or official trial that is not open to the public
- probationership — the position of a probationer
- process heating — Process heating is heating, usually from steam, which is used to increase the temperature in a process vessel.
- property rights — a legal right to or in a particular property.
- protonephridium — a tubular, excretory structure in certain invertebrates, as flatworms, rotifers, and some larvae, usually ending internally in flame cells and having an external pore
- protospatharius — (of the Byzantine empire) a high-ranking official in the imperial guard
- pseudoarthrosis — a joint formed by fibrous tissue bridging the gap between the two fragments of bone of an old fracture that have not united
- pseudonephritis — a condition, thought to be benign, in which microscopic amounts of blood and protein are present in the urine, occurring commonly among athletes after strenuous exercise.
- psychiatrically — the practice or science of diagnosing and treating mental disorders.
- psychochemistry — the treatment of mental illnesses by drugs
- psychogeriatric — the psychology of old age.
- psychohistorian — a person who writes psychohistory
- psychotherapist — the treatment of psychological disorders or maladjustments by a professional technique, as psychoanalysis, group therapy, or behavioral therapy.
- pulchritudinous — physically beautiful; comely.
- pulmobranchiate — possessing a pulmobranch
- put on the ritz — ostentatious or pretentious display.
- pyrotechnically — in a pyrotechnical manner
- pyrrhic victory — a victory or goal achieved at too great a cost.
- quantity theory — a theory stating that the general price level varies directly with the quantity of money in circulation and the velocity with which it is circulated, and inversely with the volume of production expressed by the total number of money transactions
- quasihistorical — of, pertaining to, treating, or characteristic of history or past events: historical records; historical research.
- radiant heating — the means of heating objects or persons by radiation in which the intervening air is not heated.
- radio telephone — A radio telephone is a telephone which carries sound by sending radio signals rather than by using wires. Radio telephones are often used in cars.
- radio-telephone — a telephone in which sound or speech is transmitted by means of radio waves instead of through wires or cables.
- radioautography — autoradiography.
- radiophotograph — a photograph or other image transmitted by radio.
- radiotechnology — the technical application of any form of radiation to industry.
- radiotelegraphy — the constructing or operating of radiotelegraphs.
- raise one's hat — to take one's hat briefly off one's head as a greeting or mark of respect
- raise the devil — 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.
- ramrod straight — having a very straight figure
- raster graphics — (graphics) Computer graphics in which an image is composed of an array of pixels arranged in rows and columns. Opposite: vector graphics.
- read-write head — an electromagnetic device, as in a disk or tape drive, that reads data from or writes data on a magnetic disk or tape.
- read/write head — an electromagnetic device, as in a disk or tape drive, that reads data from or writes data on a magnetic disk or tape.
- reading the law — that part of the morning service on Sabbaths, festivals, and Mondays and Thursdays during which a passage is read from the Torah scrolls
- reauthorization — the act or process of reauthorizing something
- rechargeability — (of a storage battery) capable of being charged repeatedly. Compare cordless (def 2).
- red-tailed hawk — a North American hawk, Buteo jamaicensis, dark brown above, whitish with black streaking below, and having a reddish-brown tail.
- reentry vehicle — the section of a spacecraft or ballistic missile designed to return to earth.
- relative to sth — Relative to something means with reference to it or in comparison with it.
- religious right — US right-wing Christian movement
- reorchestration — a renewed or second orchestration of a piece of music, the act of reorchestrating
- reservoir patch — A reservoir patch is an adhesive patch enclosing an amount of medicine. The patch is applied to the skin, and the medicine in it is delivered through a membrane into the skin and into the bloodstream.
- retirement home — care facility for elderly people
- reversing light — Reversing lights are the white lights on the back of a motor vehicle which shine when the vehicle is in reverse gear.
- rhesus negative — relating to blood not containing Rhesus antigen D
- rhesus positive — relating to blood containing Rhesus antigen D
- rheumatic fever — a serious disease, associated with streptococcal infections, usually affecting children, characterized by fever, swelling and pain in the joints, sore throat, and cardiac involvement.
- rheumatism-root — spotted wintergreen.
- rhodesian front — the governing party in Zimbabwe (then called Rhodesia) 1962–78