14-letter words containing t, h, y
- on the way out — If something or someone is on the way out or on their way out, they are likely to disappear or to be replaced very soon.
- ophthalmometry — the measurement and determination of the eye's defects and powers of refraction
- ophthalmoscopy — the use of or technique of using an ophthalmoscope.
- orthomyxovirus — Any RNA virus of Orthomyxoviridae family characterised by having two long glycoprotein spikes.
- orthopterology — the study of the Orthoptera
- osteodystrophy — (medicine) Any abnormal or defective development of a bone.
- out of the way — remote from much-traveled, frequented, or populous regions; secluded: an out-of-the-way inn up in the hills.
- out-of-the-way — remote from much-traveled, frequented, or populous regions; secluded: an out-of-the-way inn up in the hills.
- overnight stay — in hospital or hotel
- pachydermatous — of, relating to, or characteristic of pachyderms.
- palaeethnology — the study of prehistoric man
- paleontography — the formal description of fossils
- para-synthesis — the formation of a word by the addition of a derivational suffix to a phrase or compound, as of greathearted, which is great heart plus -ed.
- parenchymatous — Botany. the fundamental tissue of plants, composed of thin-walled cells able to divide.
- pathologically — of or relating to pathology.
- penny-farthing — a high bicycle of an early type, with one large wheel in front and one small wheel behind.
- pentamethylene — cyclopentane.
- perhydrogenate — to hydrogenate as completely as possible.
- peritrichously — in a peritrichous manner; in a fashion characteristic of a peritrichous organism
- petrochemistry — the branch of chemistry dealing with petroleum or its products.
- petrophysicist — a person who studies, or is an expert in, petrophysics
- phase velocity — the velocity with which a simple harmonic wave is propagated, equal to the wavelength divided by the period of vibration.
- pheasant's eye — an annual ranunculaceous plant, Adonis annua (or autumnalis), with scarlet flowers and finely divided leaves: native to S Europe but naturalized elsewhere
- phenotypically — the observable constitution of an organism.
- phenyl acetate — a colorless, water-insoluble liquid, C 8 H 8 O 2 , having a phenolic odor: used chiefly as a solvent.
- phenylbutazone — a potent substance, C 1 9 H 2 0 N 2 O 2 , used to reduce pain and inflammation in rheumatic diseases and gout, and used in veterinary medicine for musculoskeletal disorders.
- phenylethylene — styrene.
- phenylthiourea — 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.
- phonochemistry — the branch of chemistry concerned with the chemical effects of sound and ultrasonic waves
- phosphorolytic — of or relating to phosphorolysis
- photocatalysis — the acceleration or retardation of the reaction rate in chemical reactions by light.
- photocatalytic — the acceleration or retardation of the reaction rate in chemical reactions by light.
- photochemistry — the branch of chemistry that deals with the chemical action of light.
- photogrammetry — the process of making surveys and maps through the use of photographs, especially aerial photographs.
- photolytically — in a photolytic manner, by photolytic means
- photosynthesis — the complex process by which carbon dioxide, water, and certain inorganic salts are converted into carbohydrates by green plants, algae, and certain bacteria, using energy from the sun and chlorophyll.
- photosynthetic — the complex process by which carbon dioxide, water, and certain inorganic salts are converted into carbohydrates by green plants, algae, and certain bacteria, using energy from the sun and chlorophyll.
- phthalocyanine — Also called metal-free phthalocyanine. a blue-green pigment, C 3 2 H 1 8 N 8 , derived from phthalic anhydride.
- phyllosilicate — any silicate mineral having the tetrahedral silicate groups linked in sheets, each group containing four oxygen atoms, three of which are shared with other groups so that the ratio of silicon atoms to oxygen atoms is two to five.
- phytochemistry — the branch of biochemistry dealing with plants and plant processes.
- phytogeography — the science dealing with the geographical relationships of plants.
- phytopathology — plant pathology.
- phytosociology — the branch of ecology dealing with the origin, composition, structure, and classification of plant communities.
- pie in the sky — pie1 (def 8).
- piezochemistry — the study of chemical reactions at high pressures
- pigs might fly — If you say 'pigs might fly' after someone has said that something might happen, you are emphasizing that you think it is very unlikely.
- pitch cylinder — (in a gear or rack) an imaginary surface forming a plane (pitch plane) a cylinder (pitch cylinder) or a cone or frustrum (pitch cone) that moves tangentially to a similar surface in a meshing gear so that both surfaces travel at the same speed.
- platycephalous — flat-headed
- play hell with — to throw into confusion and disorder; disrupt
- play the field — an expanse of open or cleared ground, especially a piece of land suitable or used for pasture or tillage.