15-letter words containing p, a, s, t, e, r
- bayeux tapestry — an 11th- or 12th-century embroidery in Bayeux, nearly 70.5 m (231 ft) long by 50 cm (20 inches) high, depicting the Norman conquest of England
- bias (ply) tire — a motor vehicle tire having a foundation of plies of rubberized cords in a crisscross pattern of lines diagonal to the center line of the tread
- black september — a Palestinian Terrorist group, responsible for the assassinations of Israeli athletes at the Olympic Games at Munich in 1972
- blasting powder — a form of gunpowder made with sodium nitrate instead of saltpeter, used chiefly for blasting rock, ore, etc.
- breathing space — A breathing space is a short period of time between two activities in which you can recover from the first activity and prepare for the second one.
- brussels carpet — a worsted carpet with a heavy pile formed by uncut loops of wool on a linen warp
- butler's pantry — a pantry in a large house where crockery, glassware, cutlery, etc is kept
- butter spreader — a small knife with a wide, flat blade, as for spreading butter on bread or rolls.
- cabinet scraper — a scraper used in preparing a wood surface for sanding.
- calliper splint — a splint consisting of two metal rods with straps attached, for supporting or exerting tension on the leg
- cape finisterre — a headland in NW Spain: the westernmost point of the Spanish mainland
- capital letters — a letter of the alphabet that usually differs from its corresponding lowercase letter in form and height, as A, B, Q, and R as distinguished from a, b, q, and r : used as the initial letter of a proper name, the first word of a sentence, etc.
- car transporter — a vehicle for carrying automobiles
- carpentersville — a city in NE Illinois, near Chicago.
- carpometacarpus — a bone in the wing of a bird that consists of the metacarpal bones and some of the carpal bones fused together
- cartesian plane — Usually, Cartesian coordinates. a member of a system of coordinates for locating a point on a plane (Cartesian plane) by its distance from each of two intersecting lines, or in space by its distance from each of three planes intersecting at a point.
- cartesian space — ordinary two- or three-dimensional space.
- cassette player — A cassette player is a machine that is used for playing cassettes and sometimes also recording them.
- cast aspersions — If you cast aspersions on someone or something, you suggest that they are not very good in some way.
- castanospermine — a substance obtained from the Australian chestnut or black bean tree
- casters-up mode — [IBM, probably from slang belly up] Yet another synonym for "broken" or "down". Usually connotes a major failure. A system (hardware or software) which is "down" may be already being restarted before the failure is noticed, whereas one which is "casters up" is usually a good excuse to take the rest of the day off (as long as you're not responsible for fixing it).
- castner process — a process for extracting sodium from sodium hydroxide, devised by Hamilton Young Castner (1858–98)
- centipede grass — a slow-growing grass, Eremochloa ophiuroides, introduced into the U.S. from China and used for lawns in warm areas.
- cephalothoraxes — Plural form of cephalothorax.
- ceteris paribus — other things being equal
- character space — a space in a computer file into which a character can be fitted or which can be left blank
- charleston peak — a mountain in SE Nevada: highest peak in the Spring Mountains. 11,919 feet (3635 meters).
- chemoautotrophs — Plural form of chemoautotroph.
- chemopsychiatry — the study and application of chemical substances in psychiatry
- chile saltpeter — sodium nitrate, esp. as found naturally in Chile and Peru
- chile saltpetre — a naturally occurring form of sodium nitrate: a soluble white or colourless mineral occurring in arid regions, esp in Chile and Peru
- christadelphian — a member of a Christian millenarian sect founded in the US about 1848, holding that only the just will enter eternal life, that the wicked will be annihilated, and that the ignorant, the unconverted, and infants will not be raised from the dead
- chryse planitia — a plain on Mars, the landing site of the Viking I spacecraft.
- class president — the student president of a school or college class
- cleptoparasites — Plural form of cleptoparasite.
- comparativeness — of or relating to comparison.
- comparison test — a comparison of particular qualities or traits in two or more things in order to get a measurable assessment
- complementaries — forming a complement; completing.
- complimentaries — of the nature of, conveying, or expressing a compliment, often one that is politely flattering: a complimentary remark.
- computerisation — (chiefly, British) alternative spelling of computerization.
- concert pianist — a person who earns a living from giving solo performances on the piano in front of audiences
- conservatorship — the legal status of a person appointed by a court to protect the interests of someone, such as a child, who is unable to manage his or her own affairs
- contact process — a catalytic method for producing sulfuric acid from sulfur dioxide and oxygen.
- contemporaneous — If two events or situations are contemporaneous, they happen or exist during the same period of time.
- contrapositives — (logic) Plural form of contrapositive.
- cooperativeness — working or acting together willingly for a common purpose or benefit.
- copper arsenite — a yellowish-green, water-insoluble, poisonous powder, CuHAsO 3 , used chiefly as a pigment and as an insecticide.
- copper sulphate — a copper salt found naturally as chalcanthite and made by the action of sulphuric acid on copper oxide. It usually exists as blue crystals of the pentahydrate that form a white anhydrous powder when heated: used as a mordant, in electroplating, and in plant sprays. Formula: CuSO4
- corps de ballet — In ballet, the corps de ballet is the group of dancers who dance together, in contrast to the main dancers, who dance by themselves.
- counterexamples — Plural form of counterexample.