16-letter words containing p, o, i, r

stage production — a play or show which is performed on stage
stationary point — a point on a curve at which the tangent is either horizontal or vertical, such as a maximum, a minimum, or a point of inflection
stenothermophile — a stenothermophilic bacterium.
stereomicroscope — stereoscopic microscope.
still photograph — a photograph taken from a cinema film which is used for publicity purposes
stonecrop family — the plant family Crassulaceae, characterized by succulent herbaceous plants and shrubs with simple, fleshy leaves, clusters of small flowers, and dry, dehiscent fruit, and including hen-and-chickens, houseleek, kalanchoe, live-forever, orpine, sedum, and stonecrop.
stop-limit order — stop order.
storage capacity — amount of room or space
stroboradiograph — a stroboscopic radiograph.
studio apartment — an apartment consisting of one main room, a kitchen or kitchenette, and a bathroom. Compare efficiency apartment.
sub-postmistress — (in Britain) a woman who runs a sub-post office
subsistence crop — a food plant which is grown by a farmer for consumption by himself and his family, leaving little or nothing to be marketed
subtropical high — one of several highs, as the Azores and Pacific highs, that prevail over the oceans at latitudes of about 30 degrees N and S. Also called subtropical anticyclone. Compare high (def 37).
sugar plantation — a large area of land where sugar is grown
sulfanilyl group — the para form of the group C 6 H 6 NO 2 S–, derived from sulfanilic acid.
sulphur trioxide — a white corrosive substance existing in three crystalline forms of which the stable (alpha-) form is usually obtained as silky needles. It is produced by the oxidation of sulphur dioxide, and is used in the sulphonation of organic compounds. Formula: SO3
sulu archipelago — an island group in the SW Philippines, separating the Sulawesi Sea from the Sulu Sea. 1086 sq. mi. (2813 sq. km). Capital: Jolo.
summer complaint — an acute condition of diarrhea, occurring during the hot summer months chiefly in infants and children, caused by bacterial contamination of food and associated with poor hygiene.
sun in splendour — a representation of the sun with rays and a human face
super-injunction — an instruction or order issued by a court imposing restrictions on reporting, including any reference to the restriction itself
super-patriotism — a person who is patriotic to an extreme.
superciliousness — haughtily disdainful or contemptuous, as a person or a facial expression.
superfecundation — the fertilization of two or more ova discharged at the same ovulation by successive acts of sexual intercourse.
superior general — the superior of an order or congregation.
supernationalism — an extreme or fanatical loyalty or devotion to a nation.
superunification — a theory intended to describe the electromagnetic force, the strong force, the weak force, and gravity as a single, unified force.
supporting actor — performer: not lead
supranationalism — outside or beyond the authority of one national government, as a project or policy that is planned and controlled by a group of nations.
tax depreciation — Tax depreciation is depreciation in a company's internal financial records that is different from the amount that is used for the internal books.
terminal adaptor — (networking, hardware) (TA) Equipment used to adapt Integrated Services Digital Network (ISDN) Basic Rate Interface (BRI) channels to existing terminal equipment standards such as EIA-232 and V.35. A Terminal Adaptor is typically packaged like a modem, either as a stand-alone unit or as an interface card that plugs into a computer or other communications equipment (such as a router or PBX). A Terminal Adaptor does not interoperate with a modem; it replaces it.
the first couple — the US president and their spouse
the herring-pond — the Atlantic Ocean
the moving party — a person who applies to a court or judge with the aim of obtaining a ruling in their favour
the preconscious — preconscious mental activity
thermoacidophile — any organism, especially a type of archaebacterium, that thrives in strongly acidic environments at high temperatures.
thermoplasticity — soft and pliable when heated, as some plastics, without any change of the inherent properties.
three-point line — Basketball. a field goal worth three points, made from behind a specified line (three-point line)
three-point play — a play in which a player sinks the free throw that was awarded when the player was fouled while scoring a basket.
three-point turn — When the driver of a vehicle does a three-point turn, he or she turns the vehicle by driving forwards in a curve, then backwards in a curve, and then forwards in a curve.
thrombocytopenia — an abnormal decrease in the number of blood platelets.
thrombophlebitis — the presence of a thrombus in a vein accompanied by inflammation of the vessel wall.
tightrope walker — performer who walks on high wire
to bite your lip — If you bite your lip or your tongue, you stop yourself from saying something that you want to say, because it would be the wrong thing to say in the circumstances.
to coin a phrase — You say 'to coin a phrase' to show that you realize you are making a pun or using a cliché.
to dip your toes — If you dip your toes into something or dip your toes into the waters of something, you start doing that thing slowly and carefully, because you are not sure whether it will be successful or whether you will like it.
to play for time — If you play for time, you try to make something happen more slowly, because you do not want it to happen or because you need time to think about what to do if it happens.
to put sth right — If you put something right, you correct something that was wrong or that was causing problems.
to rest in peace — If you express the wish that a dead person may rest in peace, you are showing respect and sympathy for him or her. 'Rest in peace' or 'RIP' is also sometimes written on gravestones.
top drive system — A top drive system is a system which includes a motor that turns the drill string, used instead of the kelly.
topsail schooner — a sailing vessel fore-and-aft rigged on all of two or more masts with square sails above the foresail, and often with a square sail before the foresail.

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