14-letter words containing h, r, o, l
- 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
- orchard oriole — a North American oriole, Icterus spurius, the male of which is chestnut and black.
- organochlorine — Any of a large group of pesticides and other synthetic organic compounds with chlorinated aromatic molecules.
- ornithological — the branch of zoology that deals with birds.
- ornithologists — Plural form of ornithologist.
- orthodox sleep — dreamless sleep, characterized by a slow alpha rhythm of brain waves and no marked physiological changes.
- 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.
- orthopterology — the study of the Orthoptera
- orthoselection — orthogenesis (def 1a).
- oscillographic — Of or pertaining to an oscillograph.
- overhead light — a light which throws light downwards by being situated on the ceiling or having a downward shade, etc
- overhead valve — a valve in a type of internal-combustion engine in which the inlet and exhaust valves are in the cylinder head above the pistons
- overshot wheel — a water wheel in which the water enters the buckets tangentially near the top of the wheel.
- overwhelmingly — that overwhelms; overpowering: The temptation to despair may become overwhelming.
- 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
- oxford english — that form of the received pronunciation of English supposed to be typical of Oxford University and regarded by many as affected or pretentious
- palaeanthropic — relating to or denoting the earliest variety of man
- paleoanthropic — pertaining to prehistoric humans.
- paleogeography — the science of representing the earth's geographic features belonging to any part of the geologic past.
- paleontography — the formal description of fossils
- parallel forth — Forth For the MPP.
- parapsychology — the branch of psychology that deals with the investigation of purportedly psychic phenomena, as clairvoyance, extrasensory perception, telepathy, and the like.
- parish council — local administrative body
- parole hearing — a panel of people who decide whether to free a prisoner before his or her sentence has expired, on the condition that he or she is of good behaviour
- peritrichously — in a peritrichous manner; in a fashion characteristic of a peritrichous organism
- personal chair — a professorship awarded in recognition of academic achievement
- 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.
- pharmacologist — the science dealing with the preparation, uses, and especially the effects of drugs.
- pharmacopoeial — a book published usually under the jurisdiction of the government and containing a list of drugs, their formulas, methods for making medicinal preparations, requirements and tests for their strength and purity, and other related information.
- pharmacopolist — a person who sells pharmaceutical products
- phenolic resin — any of the class of thermosetting resins formed by the condensation of phenol, or of a phenol derivative, with an aldehyde, especially formaldehyde: used chiefly in the manufacture of paints and plastics and as adhesives for sandpaper and plywood.
- phenylcarbinol — benzyl alcohol.
- 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.
- philosopheress — a philosopher who is a woman
- phloroglucinol — a white to yellow, crystalline, slightly water-soluble powder, C 6 H 3 (OH) 3 ⋅2H 2 O, used chiefly in analytical chemistry and in the preparation of pharmaceuticals.
- phosphorolysis — any reaction where chemical bonds are broken down by phosphoric acid or phosphate
- phosphorolytic — of or relating to phosphorolysis
- photoelectrode — an electrode that, following the absorption of light, can initialize electrochemical transformations
- photographical — of or relating to photography.
- photorealistic — a style of painting flourishing in the 1970s, especially in the U.S., England, and France, and depicting commonplace scenes or ordinary people, with a meticulously detailed realism, flat images, and barely discernible brushwork that suggests and often is based on or incorporates an actual photograph.
- phototelegraph — of or relating to phototelegraphy