19-letter words containing t, h, i, o
- occupational health — Occupational health is the branch of medicine that deals with the health of people in their workplace or in relation to their job.
- officer of the deck — a naval duty officer responsible for the operation of the ship in the absence of the captain or the executive officer. Abbreviation: O.O.D.
- old english pattern — a spoon pattern having a stem curving backward at the end.
- old spanish customs — irregular practices among a group of workers to gain increased financial allowances, reduced working hours, etc
- olive-backed thrush — Swainson's thrush.
- on the baker's list — in good health
- on-the-job training — apprenticeship, learning by doing
- one of those things — something that cannot be avoided, helped, changed, etc.
- operations research — the analysis, usually involving mathematical treatment, of a process, problem, or operation to determine its purpose and effectiveness and to gain maximum efficiency.
- oriental fruit moth — a moth, Grapholitha molesta, introduced into the U.S. from Asia, the larvae of which infest and feed on the twigs and fruits of peach, plum, and related trees.
- orthopaedic surgeon — a surgeon specializing in the branch of surgery concerned with disorders of the spine and joints and the repair of deformities of these parts
- orthopaedic surgery — surgery concerned with disorders of the spine and joints and the repair of deformities of these parts
- otorhinolaryngology — otolaryngology.
- out of the ordinary — of no special quality or interest; commonplace; unexceptional: One novel is brilliant, the other is decidedly ordinary; an ordinary person.
- out of the question — a sentence in an interrogative form, addressed to someone in order to get information in reply.
- overhead projection — the projection (using an overhead projector) of an enlarged image of a transparency onto a surface above and behind the person using it
- palaeoethnobotanist — someone who studies fossil seeds and grains to further archaeological knowledge, esp of the domestication of cereals
- paleoanthropologist — the study of the origins and predecessors of the present human species, using fossils and other remains.
- parasympathomimetic — having an effect similar to that produced when the parasympathetic nervous system is stimulated
- parathyroid extract — an aqueous preparation obtained from the parathyroid gland of cattle, used in medicine chiefly in cases of parathyroid deficiency and in veterinary medicine in the treatment of tetanic convulsions.
- parathyroid hormone — a polypeptide hormone, produced in the parathyroid glands, that helps regulate the blood levels of calcium and phosphate. Abbreviation: PTH.
- parthenogenetically — development of an egg without fertilization.
- particle technology — Particle technology is knowledge and study which relates to particles, and is used in industry.
- parting of the ways — When there is a parting of the ways, two or more people or groups of people stop working together or travelling together.
- paumotu archipelago — Tuamotu Archipelago.
- phacoemulsification — the removal of a cataract by first liquefying the affected lens with ultrasonic vibrations and then extracting it by suction.
- phakoemulsification — the removal of a cataract by first liquefying the affected lens with ultrasonic vibrations and then extracting it by suction.
- phenanthrenequinone — a yellowish-orange, crystalline, water-insoluble solid, C 1 4 H 8 O 2 , used chiefly in organic synthesis and the manufacture of dyes.
- phenylthiocarbamide — a crystalline, slightly water-soluble solid, C 6 H 5 NHCSNH 2 , that is either tasteless or bitter, depending upon the heredity of the taster, and is used in medical genetics and as a diagnostic.
- philosopher's stone — a substance sought by alchemists that would be capable of transmuting baser metals into gold or silver and of prolonging life.
- philosophers' stone — a substance sought by alchemists that would be capable of transmuting baser metals into gold or silver and of prolonging life.
- photodisintegration — the disintegration of a nucleus, induced by its absorption of a photon.
- photoelectric meter — an exposure meter using a photocell for the measurement of light intensity.
- photographic memory — total recall
- photopolymerization — polymerization induced by light.
- photoreconnaissance — reconnaissance using aerial photography.
- photovoltaic effect — the phenomenon in which the incidence of light or other electromagnetic radiation upon the junction of two dissimilar materials, as a metal and a semiconductor, induces the generation of an electromotive force.
- phthalocyanine blue — a pigment used in painting, derived from copper phthalocyanine and characterized chiefly by its brilliant, dark-blue color and by permanence.
- piece of the action — the process or state of acting or of being active: The machine is not in action now.
- pistachio ice cream — ice cream flavoured with pistachios
- pistol-handle knife — a table knife, especially of the 18th century, having a slightly curved handle resembling the grip of a flintlock pistol.
- play footsie (with) — to touch feet or rub knees (with) in a caressing way, as under the table
- pocket-handkerchief — handkerchief (def 1).
- point the finger at — to accuse or blame
- police headquarters — building where police are stationed
- political geography — the branch of human geography that deals with the relationship between political processes and spatial structures (regions, territories, etc)
- polyphonic ringtone — (in mobile phones) a ringtone in which more than one musical note is played at the same time
- postsynchronization — the process of adding sound, such as dubbing, to a film or video after shooting or videotaping is completed
- potassium hydroxide — a white, deliquescent, water-soluble solid, KOH, usually in the form of lumps, sticks, or pellets, that upon solution in water generates heat: used chiefly in the manufacture of soap, as a laboratory reagent, and as a caustic.
- potassium phosphate — any of the three orthophosphates of potassium ((potassium monophosphate) (K 2 HPO 4), (potassium diphosphate) (KH 2 PO 4), and (tripotassium phosphate) (K 3 PO 4) )