16-letter words containing t, h, i, o
- photoperiodicity — the response, as affecting growth or reproduction, of an organism to the length of exposure to light in a 24-hour period.
- photopolarimeter — a polarimeter that uses a photocell.
- photorespiration — the oxidation of carbohydrates in many higher plants in which they get oxygen from light and then release carbon dioxide, somewhat different from photosynthesis.
- photosensitivity — the quality of being photosensitive.
- phototypesetting — Printing. photocomposition.
- photozincography — a type of photoengraving using a sensitized zinc plate.
- phylogenetically — the development or evolution of a particular group of organisms.
- phytoremediation — a process of decontaminating soil or water by using plants and trees to absorb or break down pollutants.
- phytosuccivorous — feeding on sap, as certain sucking insects.
- pinot chardonnay — Chardonnay.
- pitch inspection — in inclement weather, a pre-match inspection of the playing surface in order to determine whether it is in good enough condition for the match to go ahead
- pitch-cone angle — (in a bevel gear) the apex angle of the truncated cone (pitch cone) which forms the reference surface on which the teeth of a bevel gear are cut
- pithecanthropine — of, belonging to, or resembling a former genus (Pithecanthropus, now classified as Homo erectus) of extinct early humans, who lived in Java, China, Europe, and Africa
- pithecanthropoid — of, relating to, or resembling the former genus Pithecanthropus or one of its members.
- plainclothes man — a detective or police officer who wears civilian clothes while on duty
- pneumatic trough — a trough filled with liquid, especially water, for collecting gases in bell jars or the like by displacement.
- point de hongrie — flame stitch.
- poitou-charentes — a region of W central France, on the Bay of Biscay: mainly low-lying
- poor white trash — white trash.
- pop the question — to make a short, quick, explosive sound: The cork popped.
- pork scratchings — small pieces of crisply cooked pork crackling, eaten cold as an appetizer with drinks
- port authorities — the body with overall responsibility for a port
- port phillip bay — a bay in SE Australia: the harbor of Melbourne. 31 miles (50 km) long; 25 miles (40 km) wide.
- post-elizabethan — of or relating to the reign of Elizabeth I, queen of England, or to her times: Elizabethan diplomacy; Elizabethan music.
- postencephalitic — inflammation of the substance of the brain.
- poynting theorem — the theorem that the rate of flow of electromagnetic energy through unit area is equal to the Poynting vector, i.e. the cross product of the electric and magnetic field intensities
- pragmatic theory — the theory of truth that the truth of a statement consists in its practical consequences, especially in its agreement with subsequent experience.
- prognostic chart — a chart showing the predicted state of the atmosphere for a given time in the future.
- projection booth — a soundproof compartment in a theater where a motion-picture projector is housed and from which the picture is projected on the screen.
- prophylactically — defending or protecting from disease or infection, as a drug.
- propylthiouracil — a white crystalline compound, C 7 H 1 0 N 2 OS, that interferes with the synthesis of thyroid hormone by the thyroid gland: used in the treatment of hyperthyroidism.
- prospect heights — a town in N Illinois.
- prosthetic group — the nonprotein acid constituent of a conjugate protein, as the heme group of hemoglobin.
- protestant ethic — work ethic.
- pseudohistorical — of, pertaining to, treating, or characteristic of history or past events: historical records; historical research.
- psychoanalytical — a systematic structure of theories concerning the relation of conscious and unconscious psychological processes.
- psychogeriatrics — the psychology of old age.
- put in mothballs — to postpone work on (a project, activity, etc)
- put the question — to require members of a deliberative assembly to vote on a motion presented
- put the skids to — to thwart or cause to fail
- quasi-historical — of, pertaining to, treating, or characteristic of history or past events: historical records; historical research.
- rational horizon — the line or circle that forms the apparent boundary between earth and sky.
- reaction chamber — the chamber in a rocket engine in which the reaction or combustion of fuel occurs
- recursion theory — (theory) The study of problems that, in principle, cannot be solved by either computers or humans.
- redbank whiteoak — a city in S Tennessee.
- residential home — a home with social-work supervision for people who need more than just housing accommodation, such as esp the elderly, and also children in care or mentally handicapped adults
- rhinopharyngitis — inflammation of the mucous membranes of the nose and pharynx.
- ribbon lightning — a repeated lightning discharge in which successive strokes are displaced from each other by wind, resulting in a broadened appearance.
- rich text format — (RTF) An interchange format from Microsoft for exchange of documents between Word and other document preparation systems.
- richmond heights — a city in E Missouri, near St. Louis.