15-letter words containing d, i, o, p
- pyrometric bead — (in a kiln) a ball of material that indicates by changing color that a certain temperature has been reached.
- quadripartition — A division into four parts.
- quadruplication — one of four copies or identical items, especially copies of typewritten material.
- question period — a period of time set aside each day for members of parliament to question government ministers
- rack-and-pinion — of or relating to a mechanism in which a rack engages a pinion: rack-and-pinion steering.
- radio programme — something that is broadcast on radio
- 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 telescope — a system consisting of an antenna, either parabolic or dipolar, used to gather radio waves emitted by celestial sources and bring them to a receiver placed in the focus.
- radio-telephone — a telephone in which sound or speech is transmitted by means of radio waves instead of through wires or cables.
- radioautography — autoradiography.
- radiophosphorus — phosphorus 32.
- radiophotograph — a photograph or other image transmitted by radio.
- radioprotection — protection against radiation
- radioprotective — giving protection against the effects of radiation
- radiotelegraphy — the constructing or operating of radiotelegraphs.
- random sampling — a method of selecting a sample (random sample) from a statistical population in such a way that every possible sample that could be selected has a predetermined probability of being selected.
- recoil-operated — employing the recoil force of an explosive projectile to prepare the firing mechanism for the next shot.
- refuse disposal — the act of disposing of rubbish and waste
- registered port — (networking) Any TCP or UDP port with a number in the range 1025 to 65535 (i.e. not a well-known port) that is registered with IANA.
- registered post — a Post Office service by which compensation is paid for loss or damage to mail for which a registration fee has been paid
- remand prisoner — a prisoner who is sent back into custody (or sometimes admitted to bail) to await trial or continuation of their trial
- reproducibility — to make a copy, representation, duplicate, or close imitation of: to reproduce a picture.
- río de la plata — Rí·o de la [ree-aw th e lah] /ˈri ɔ ðɛ lɑ/ (Show IPA) an estuary on the SE coast of South America between Argentina and Uruguay, formed by the Uruguay and Paraná rivers, about 185 miles (290 km) long.
- riviere-du-loup — a city in SE Quebec, in E Canada, on the St. Lawrence.
- room-and-pillar — noting a means of extracting coal or other minerals from underground deposits by first cutting out rooms, then robbing the pillars between them; pillar-and-breast.
- round-trip time — (RTT) A measure of the current delay on a network, found by timing a packet bounced off some remote host. This can be done with ping -s.
- scolopendriform — resembling scolopendra
- scorpion spider — whipscorpion.
- seaside sparrow — a species of sparrow, Ammospiza maritima, existing in two subspecies, one (Cape Sable seaside sparrow) having dark olive-drab plumage with a lighter breast and underbelly, and the other (dusky seaside sparrow) having bold black and white markings on the breast and underbelly: the dusky seaside sparrow is almost extinct.
- second position — a position in which the feet are spread apart and are at right angles to the direction of the body, the toes pointing out.
- second republic — the republic established in France in 1848 and replaced by the Second Empire in 1852.
- seidlitz powder — a laxative consisting of two powders, tartaric acid and a mixture of sodium bicarbonate and Rochelle salt (sodium potassium tartrate)
- self-hypnotized — hypnotized by oneself.
- self-proclaimed — to announce or declare in an official or formal manner: to proclaim war.
- self-production — produced by oneself or itself.
- septendecillion — a cardinal number represented in the U.S. by 1 followed by 54 zeros, and in Great Britain by 1 followed by 102 zeros.
- serendipitously — come upon or found by accident; fortuitous: serendipitous scientific discoveries.
- sewage disposal — waste processing
- shopping arcade — a place where a number of shops are connected together under one roof
- sidereal period — the period of revolution of a body about another with respect to one or more distant stars
- simple division — a type of division to find out how many times the smaller number is contained in the larger one
- slide projector — device for showing slides
- sneezing powder — a powder used to make people sneeze as a practical joke
- snubfin dolphin — Australian dolphin with a small dorsal fin
- social spending — the money that is spent on welfare payments
- sodium peroxide — a yellowish-white, hygroscopic, water-soluble powder, Na 2 O 2 , used chiefly as a bleaching agent and as an oxidizing agent.
- sodium sulphate — a solid white substance that occurs naturally as thenardite and is usually used as the white anhydrous compound (salt cake) or the white crystalline decahydrate (Glauber's salt) in making glass, detergents, and pulp. Formula: Na2SO4
- sophisticatedly — (of a person, ideas, tastes, manners, etc.) altered by education, experience, etc., so as to be worldly-wise; not naive: a sophisticated young socialite; the sophisticated eye of an experienced journalist.
- spawning ground — a place where fish deposit their eggs for fertilization
- special edition — newspaper, magazine: extra issue