14-letter words containing t, a, h, l
- ophthalmologic — the branch of medical science dealing with the anatomy, functions, and diseases of the eye.
- ophthalmometer — an instrument for measuring the reflection of an image on the surface of the cornea and other capacities of the eye, used chiefly for determining the presence and degree of astigmatism.
- ophthalmometry — the measurement and determination of the eye's defects and powers of refraction
- ophthalmoscope — an instrument for viewing the interior of the eye or examining the retina.
- ophthalmoscopy — the use of or technique of using an ophthalmoscope.
- opisthoglossal — (of the tongues of amphibians) attached at the front as opposed to the rear
- opthalmologist — Misspelling of ophthalmologist.
- ornithological — the branch of zoology that deals with birds.
- orthographical — Of, or relating to orthography; spelled correctly.
- orthomolecular — being or pertaining to the treatment of disease by increasing, decreasing, or otherwise controlling the intake of natural substances, especially vitamins. Compare megavitamin (def 1).
- orthonormalize — (mathematics) To make a set of vectors both orthogonal and normalized.
- otaheite apple — a Society Islands tree, Spondias cytherea, of the cashew family, having whitish flowers and yellow, edible, plumlike fruit.
- outlandishness — The quality of being outlandish.
- overhead light — a light which throws light downwards by being situated on the ceiling or having a downward shade, etc
- owlet nightjar — any of several birds of the family Aegothelidae, of Australia and Papua New Guinea, related to the nightjars but resembling small owls.
- ownership flat — a flat owned by the occupier
- palaeanthropic — relating to or denoting the earliest variety of man
- palaeethnology — the study of prehistoric man
- paleoanthropic — pertaining to prehistoric humans.
- paleontography — the formal description of fossils
- pamphleteering — the occupation of a pamphleteer
- panel lighting — lighting of a room or building by means of flat sheets of material that glow brightly when a coating of a phosphor is excited by an electrical charge.
- parallel forth — Forth For the MPP.
- parking lights — the parking lights on a vehicle are the small lights at the front that help other drivers to notice the vehicle and to judge its width
- paschal letter — (in the early Christian church) a letter, written by a patriarch, archbishop, or bishop to a cleric under his authority, announcing the date of the next Easter festival.
- patent leather — a hard, glossy, smooth leather, used especially in shoes and accessories.
- patheticalness — causing or evoking pity, sympathetic sadness, sorrow, etc.; pitiful; pitiable: a pathetic letter; a pathetic sight.
- pathologically — of or relating to pathology.
- patriarchalism — a philosophy, form, or system of patriarchal government.
- pavement light — a windowlike structure set in a pavement or the like to illuminate areas beneath, consisting of thick glass blocks set in a metal frame.
- pebble-leather — a small, rounded stone, especially one worn smooth by the action of water.
- pendulum watch — (formerly) a watch having a balance wheel, especially a balance wheel bearing a fake pendulum bob oscillating behind a window in the dial.
- pentamethylene — cyclopentane.
- pentland firth — a strait between N Scotland and the Orkney Islands, linking the North Sea to the Atlantic Ocean: noted for its rough sea conditions. 14 miles (23 km) long.
- petrochemicals — substances, such as acetone or ethanol, obtained from petroleum or natural gas
- phallocentrism — a doctrine or belief centered on the phallus, especially a belief in the superiority of the male sex.
- pharmaceutical — pertaining to pharmacy or pharmacists.
- pharmacologist — the science dealing with the preparation, uses, and especially the effects of drugs.
- pharmacopolist — a person who sells pharmaceutical products
- phase velocity — the velocity with which a simple harmonic wave is propagated, equal to the wavelength divided by the period of vibration.
- 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.
- 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.
- philanthropist — a person who practices philanthropy.
- philanthropize — to treat (persons) in a philanthropic manner.
- philanthropoid — an individual who does work for a charitable body
- philosophaster — a person who has only a superficial knowledge of philosophy or who feigns a knowledge he or she does not possess.
- 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.