17-letter words containing e, c, t, o, h
- paleobiochemistry — the study of biochemical processes that occurred in fossil life forms.
- parathyroidectomy — the excision of a parathyroid gland.
- pebbleweave cloth — an irregularly textured material made from twisted yarn
- pentachlorophenol — a white, crystalline, water-insoluble powder, C 6 Cl 5 OH, used chiefly in fungicides, disinfectants, and wood preservatives.
- perchloroethylene — tetrachloroethylene.
- personality clash — friction between two people who have different personalities or points of view
- petrarchan sonnet — a sonnet form popularized by Petrarch, consisting of an octave with the rhyme scheme abbaabba and of a sestet with one of several rhyme schemes, as cdecde or cdcdcd.
- phantom pregnancy — the occurrence of signs of pregnancy, such as enlarged abdomen and absence of menstruation, when no embryo is present, due to hormonal imbalance
- phenethyl alcohol — a colorless, viscous, slightly water-soluble liquid, C 8 H 1 0 O, having a faint roselike odor: used chiefly in perfumery.
- phenyl isocyanate — a liquid reagent, C 7 H 5 NO, having an unpleasant, irritating odor: used chiefly for identifying alcohols and amines.
- phonetic alphabet — an alphabet containing a separate character for each distinguishable speech sound.
- photoluminescence — luminescence induced by the absorption of infrared radiation, visible light, or ultraviolet radiation.
- photoreactivation — a process that repairs DNA damaged by ultraviolet light using an enzyme that requires visible light.
- phototherapeutics — the branch of therapeutics that deals with the curative use of light rays.
- photovoltaic cell — a photocell in which an electromotive force is generated by a photovoltaic effect.
- pick the eyes out — to select the best parts or pieces (of)
- platinic chloride — chloroplatinic acid.
- pocket battleship — a small heavily armed and armored warship serving as a battleship because of limitations imposed by treaty.
- point of purchase — designating or in use at a retail outlet where an item can be purchased; point-of-sale: point-of-purchase displays to entice the buyer.
- point-of-purchase — designating or in use at a retail outlet where an item can be purchased; point-of-sale: point-of-purchase displays to entice the buyer.
- police helicopter — a helicopter used in police operations, for example in traffic control, or for observation
- polioencephalitis — a disease characterized by inflammation of the gray matter of the brain.
- polystyrene chips — small pieces of polystyrene used for insulating or packing
- pre-technological — of or relating to technology; relating to science and industry.
- priority check-in — Priority check-in at a hotel is an arrangement which allows a guest to check in without waiting in a line.
- pseudo-historical — of, pertaining to, treating, or characteristic of history or past events: historical records; historical research.
- pseudo-humanistic — a person having a strong interest in or concern for human welfare, values, and dignity.
- psychoeducational — designating or of psychological methods, as intelligence tests, used in evaluating learning ability
- psychometric test — a test designed to test a person's mental state, personality and thought processes
- psychotherapeutic — psychotherapy.
- put the screws on — a metal fastener having a tapered shank with a helical thread, and topped with a slotted head, driven into wood or the like by rotating, especially by means of a screwdriver.
- pythagorean scale — the major scale as derived acoustically by Pythagoras from the perfect fifth.
- quick on the draw — having fast reflexes
- read the riot act — an English statute of 1715 providing that if 12 or more persons assemble unlawfully and riotously, to the disturbance of the public peace, and refuse to disperse upon proclamation they shall be considered guilty of felony.
- respiratory chain — a series of mitochondrial proteins that transport electrons of hydrogen, released in the Krebs cycle, from acetyl coenzyme A to inhaled oxygen to form H 2 O: the energy released in the process is conserved as ATP.
- reticulate python — a python, Python reticulatus, of southeastern Asia and the East Indies, sometimes growing to a length of 32 feet (10 meters): usually considered to be the largest snake in the world.
- rhetorical stress — stress required by the meaning of a line, as distinguished from that required by the meter.
- rheumatoid factor — an antibody that is found in the blood of many persons afflicted with rheumatoid arthritis and that reacts against globulins in the blood.
- rhinoceros beetle — any of several scarabaeid beetles, especially of the genus Dynastes, which comprises the largest beetles, characterized by one or more horns on the head and prothorax.
- rocket technology — the technology of the design, operation, maintenance, and launching of rockets
- run out the clock — to maintain control of the ball in the closing minutes of a game
- saint christopher — Saint, died a.d. c250, Christian martyr.
- saxe-coburg-gotha — a member of the present British royal family, from the establishment of the house in 1901 until 1917 when the family name was changed to Windsor.
- scarlet firethorn — a Eurasian evergreen, thorny shrub, Pyracantha coccinea, of the rose family, having white, hairy flower clusters and bright red berries.
- scattered showers — showers that are scattered across an area, or that occur at intervals throughout the day
- scheme repository — A collection of free Scheme programs.
- schmidt telescope — a wide-angle reflecting telescope used primarily for astronomical photography, in which spherical aberration and coma are reduced to a minimum by means of a spherical mirror with a corrector plate near its focus.
- school attendance — a measure of the number of children who attend school and the amount of time they are present
- scientific method — a method of research in which a problem is identified, relevant data are gathered, a hypothesis is formulated from these data, and the hypothesis is empirically tested.
- scientific theory — a coherent group of propositions formulated to explain a group of facts or phenomena in the natural world and repeatedly confirmed through experiment or observation: the scientific theory of evolution.