13-letter words containing o, h, a, r
- over-achiever — to perform, especially academically, above the potential indicated by tests of one's mental ability or aptitude.
- over-the-road — of, for, or pertaining to transportation on public highways: over-the-road trucks.
- overachievers — Plural form of overachiever.
- overachieving — Present participle of overachieve.
- overbreathing — hyperventilation
- overemphasise — (British) alternative spelling of overemphasize.
- overemphasize — to emphasize excessively.
- overhand knot — a simple knot of various uses that slips easily.
- overhastiness — the condition of being overhasty
- overhead door — a door that rotates on a horizontal axis and is supported horizontally when open
- overhead-shot — over one's head; aloft; up in the air or sky, especially near the zenith: There was a cloud overhead.
- overnight bag — a travel bag large enough to hold personal articles and clothing for an overnight trip.
- oystercatcher — any of several long-billed wading birds of the genus Haematopus that have chiefly black-and-white plumage and that feed on oysters, clams, mussels, etc.
- paedomorphism — the continuation of juvenile characteristics in the adult stage
- painted horse — paint (def 6).
- pandora shell — any marine bivalve of the genus Pandora, having a scimitar-shaped shell with a pronounced ridge along the hinge.
- panharmonicon — a mechanical instrument that imitates orchestral sounds
- parapophysial — of or relating to a parapophysis
- parapsychosis — an abnormal psychosis
- parasyntheton — a word formed by parasynthesis; for example, kind-hearted
- parencephalon — a cerebral hemisphere
- parental home — a school for problem children.
- parnell shout — a social occasion where each person in a group pays for his or her own entertainment or meal
- parthenocarpy — the production of fruit without fertilization of an egg in the ovary.
- parthenopaeus — a son of Hippomenes and Atalanta, and one of the Seven against Thebes.
- parthenospore — a spore developed without fertilization.
- parthian shot — a sharp, telling remark, act, gesture, etc., made in departing.
- pass the word — If you pass the word, you tell someone something that another person has told you.
- past historic — the simple past
- patent holder — a person or company that holds a patent
- pathomorphism — abnormal morphology.
- peacock chair — a wicker armchair with a high, circular back.
- perchlorinate — to combine with the maximum proportion of chlorine.
- petrochemical — a chemical substance obtained from petroleum or natural gas, as gasoline, kerosene, or petrolatum.
- petrophysical — relating to the analysis of the constitution and characteristics of rocks
- phallocentric — a doctrine or belief centered on the phallus, especially a belief in the superiority of the male sex.
- phantasmagory — phantasmagoria.
- pharaoh hound — one of a breed of medium-sized gazehounds with a smooth coat, red to tan in color with white markings, and erect ears.
- pharmacognosy — materia medica (def 2).
- pharmacologic — the science dealing with the preparation, uses, and especially the effects of drugs.
- pharmacopoeia — 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.
- pharyngectomy — excision of part or all of the pharynx.
- pharyngoscope — an instrument for inspecting the pharynx.
- pharyngoscopy — an examination by means of a pharyngoscope.
- phenobarbital — a white, crystalline powder, C 1 2 H 1 2 N 2 O 3 , used as a sedative, a hypnotic, and as an antispasmodic in epilepsy.
- philanthropic — of, pertaining to, engaged in, or characterized by philanthropy; benevolent: a philanthropic foundation.
- phlebographic — relating to phlebography or the X-ray imaging of a vein that has been injected with a dye that is visible on the image taken
- phonautograph — a piece of equipment that records sound visually by detecting the sound waves and indicating them on a graph
- phosphorylase — any enzyme, occurring widely in animal and plant tissue, that in the presence of an inorganic phosphate catalyzes the conversion of glycogen into sugar phosphate.
- phosphorylate — to introduce the phosphoryl group into (an organic compound).