20-letter words containing i, a, p, g

dual in-line package — (hardware) (DIL, DIP) The most common type of package for small and medium scale integrated circuits, with up to about 48 pins. The pins hang vertically from the two long edges of the rectangular package, spaced at intervals of 0.1 inch. The pins fit through holes in the circuit board to which they are soldered or into a socket.
ecological footprint — a mark left by the shod or unshod foot, as in earth or sand.
electrocardiographic — Of or pertaining to an electrocardiogram (ECG) or electrocardiograph.
electromagnetic pump — a device for pumping liquid metals by placing a pipe between the poles of an electromagnet and passing a current through the liquid metal
electrophysiological — Of or pertaining to electrophysiology.
free-range parenting — Informal. a style of child rearing in which parents allow their children to move about without constant adult supervision, aimed at instilling independence and self-reliance.
freefall parachuting — a variety of parachuting in which the jumper manoeuvres in free fall before opening the parachute
freight pass-through — a special allowance or discounted price given a bookseller or bookstore by a publishing house for paying the freight charge on a shipment of books ordered: so called because the shipping charge is passed on to the consumer by an increase in the suggested retail price for each book. Abbreviation: FPT.
fulminating compound — a fulminate.
gaff-topsail catfish — a sea catfish, Bagre marinus, occurring in the Atlantic and the Gulf of Mexico from Cape Cod to Panama, and having the spine of the dorsal fin greatly prolonged and flattened.
general postal union — former name of Universal Postal Union. Abbreviation: GPU.
general practitioner — a medical practitioner whose practice is not limited to any specific branch of medicine or class of diseases. Abbreviation: G.P.
general public virus — (software, legal) A pejorative name for some versions of the GNU project copyleft or General Public License (GPL), which requires that any tools or application programs incorporating copylefted code must be source-distributed on the same terms as GNU code. Thus it is alleged that the copyleft "infects" software generated with GNU tools, which may in turn infect other software that reuses any of its code.
generative phonology — a theory of phonology that uses a set of rules to derive phonetic representations from abstract underlying forms.
gingival hyperplasia — Gingival hyperplasia is abnormal enlargement of the gums.
glucosamine sulphate — a compound used in some herbal remedies and dietary supplements, esp to strengthen joint cartilage
go like the clappers — to move extremely fast
gorno-altai republic — a constituent republic of S Russia: mountainous, rising over 4350 m (14 500 ft) in the Altai Mountains of the south. Capital: Gorno-Altaisk. Pop: 202 900 (2002). Area: 92 600 sq km (35 740 sq miles)
graphics accelerator — (graphics, hardware) Hardware (often an extra circuit board) to perform tasks such as plotting lines and surfaces in two or three dimensions, filling, shading and hidden line removal.
group life insurance — a form of life insurance available to members of a group, typically employees of a company, under a master policy.
group representation — representation in a governing body on the basis of interests rather than by geographical location.
hang up one's spikes — to retire, as from a professional sport
happy hunting ground — the North American Indian heaven, conceived of as a paradise of hunting and feasting for warriors and hunters.
hard gelatin capsule — A hard gelatin capsule is a type of capsule that is usually used to contain medicine in the form of dry powder or very small pellets.
harmonic progression — a series of numbers the reciprocals of which are in arithmetic progression.
have an itching palm — to desire money greedily
hazard warning lamps — Hazard warning lamps are flashing lamps on each corner of a vehicle that are used to show the position of the vehicle if there has been a breakdown or an accident.
he's no oil painting — he is not good-looking
helicopter parenting — a style of child rearing in which an overprotective mother or father discourages a child's independence by being too involved in the child's life: In typical helicopter parenting, a mother or father swoops in at any sign of challenge or discomfort.
high-energy particle — Physics
himalayan guinea pig — a variety of short-haired guinea pig with markings on its nose, ears, and feet
how are you keeping? — how are you?
hyperbolic cotangent — a hyperbolic function that is the ratio of cosh to sinh, being the reciprocal of tanh; coth
industrial espionage — the stealing of technological or commercial research data, blueprints, plans, etc., as by a person in the hire of a competing company.
inertial upper stage — a U.S. two-stage, solid-propellant rocket used to boost a relatively heavy spacecraft from a low earth orbit into a planetary trajectory or an elliptical transfer orbit. Abbreviation: IUS.
infrared photography — photography using film with an emulsion that is sensitive to infrared light, enabling it to be used in misty weather, in darkened interiors, or at night. It has applications in aerial surveys, the detection of forgeries, etc
initial program load — (operating system) (IPL) The procedure used to (re-)start a computer system by copying the operating system kernel into main memory and running it. Part of the boot sequence.
innerspring mattress — a mattress with built-in coil springs
integration by parts — Mathematics. a method of evaluating an integral by use of the formula, ∫udv = uv − ∫vdu.
judicial proceedings — any action involving or carried out by a court of law
keep a straight face — look serious, avoid smiling
keep a tight rein on — to control carefully; limit
king charles spaniel — a variety of the English toy spaniel having a black-and-tan coat.
king's-pawn openings — a class of chess openings in which the pawn in front of the king is advanced two squares on the first move.
kingston upon thames — a borough of Greater London, England.
knights hospitallers — a military religious order founded about the time of the first crusade (1096–99) among European crusaders. It took its name from a hospital and hostel in Jerusalem
kruger national park — a wildlife sanctuary in NE South Africa: the world's largest game reserve. Area: over 21 700 sq km (8400 sq miles)
legal representation — representation by a lawyer
light the touchpaper — to do something that will cause much anger or excitement
linguistic geography — dialect geography.

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