13-letter words containing h, a, d
- orthodiagonal — the axis in a crystal
- orthopaedical — Pertaining to orthopaedics; characteristic of orthopaedia.
- orthopinakoid — a crystalline plane
- over-the-road — of, for, or pertaining to transportation on public highways: over-the-road trucks.
- overhand knot — a simple knot of various uses that slips easily.
- 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.
- 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.
- paper-shelled — having a thin, easily broken shell: paper-shelled nuts.
- paradise fish — any small freshwater fish of the genus Macropodus, of southeastern Asia, often kept in aquariums.
- parenthesized — to insert (a word, phrase, etc.) as a parenthesis.
- pas de cheval — a step in which the dancer hops on one foot and paws the ground with the other.
- pass the word — If you pass the word, you tell someone something that another person has told you.
- passchendaele — a village in NW Belgium, in West Flanders province: the scene of heavy fighting during the third battle of Ypres in World War I during which 245 000 British troops were lost
- patent holder — a person or company that holds a patent
- pearl-handled — having a handle made of pearl or mother-of-pearl
- pedal pushers — women's short trousers
- pentadelphous — (of a plant) having its stamens arranged in five groups; (of stamens) being arranged in five groups
- pham van dong — 1906–2000, Vietnamese political leader: prime minister of North Vietnam 1955–76 and of unified Vietnam 1976–86.
- 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.
- phase diagram — a graph, usually using temperature, pressure, and composition as coordinates, indicating the regions of stability of the various phases of a system.
- phase encoded — (storage) (PE) A recording method used for 1600 BPI magnetic tapes. Compare NRZI, GCR.
- phenylic acid — phenol (def 1).
- phillips head — a screw head having two partial slots crossed at right angles, driven by a special screwdriver (Phillips screwdriver)
- philo judaeus — c20 b.c.–a.d. c50, Alexandrian Jewish theologian and philosopher.
- phong shading — (graphics) A model of how light is reflected from surfaces used extensively in three dimensional graphics to generate visually realistic images.
- phony disease — a disease of peaches, characterized by dwarfing, dark-green leaves, premature leafing and flowering, and the production of reduced numbers of small fruit, caused by a virus, Nanus mirabilis.
- photodynamics — the science dealing with light and its effects on living organisms.
- phrygian mode — an authentic church mode represented on the white keys of a keyboard instrument by an ascending scale from E to E.
- phthalic acid — Chemistry. any of three isomeric acids having the formula C 8 H 6 O 4 , especially the ortho isomer (orthophthalic acid) a colorless, crystalline, slightly water-soluble solid used chiefly in the manufacture of dyes, medicine, and perfume.
- phyllocladous — having phylloclades.
- picardy third — a major third in the final tonic chord of a composition written in a minor key.
- pigheadedness — stupidly obstinate; stubborn: pigheaded resistance.
- play hardball — baseball, as distinguished from softball.
- playback head — the part of a tape recorder that is used to pick up the magnetic pattern on tape in order to play back material previously recorded.
- plough monday — the first Monday after Epiphany, which in N and E England used to be celebrated with a procession of ploughmen drawing a plough from house to house
- pointy-headed — stupid; idiotic.
- polyadelphous — (of stamens) united by the filaments into three or more sets or bundles.
- pompon dahlia — a cultivated variety of the dahlia flower, with a small globelike flower head
- posix threads — (programming) (Pthreads) A POSIX standard API that defines a set of C programming language types, functions and constants for creating and manipulating pre-emptive threads. The standard's full name is "POSIX.1c, Threads extensions (IEEE Std 1003.1c-1995)". Implementations are available on many Unix-like POSIX-conformant operating systems such as FreeBSD, NetBSD, OpenBSD, GNU/Linux, Mac OS X and Solaris as well as DR-DOS and Microsoft Windows. Pthreads was designed and implemented in the PART Project (POSIX / Ada-Runtime Project).
- poulard wheat — a Mediterranean wheat, Triticum turgidum, grown as a forage crop in the U.S.
- powder charge — propellant (def 2).
- pre-adulthood — of or relating to the period prior to adulthood: preadult strivings for independence.
- pressure head — the upper part of the body in humans, joined to the trunk by the neck, containing the brain, eyes, ears, nose, and mouth.
- prosthodontia — the branch of dentistry that deals with the restoration and maintenance of oral function by the replacement of missing teeth and other oral structures by artificial devices.
- protochordate — any of the nonvertebrate chordates, as the tunicates, cephalochordates, and hemichordates.
- pseudepigraph — a book or piece of writing that is falsely titled or credited
- pseudesthesia — phantom limb pain.