13-letter words containing r, a, i, l
- graphic algol — (language) A extension of ALGOL 60 for real-time generation of shaded perspective pictures.
- graphic novel — a novel in the form of comic strips.
- graphitizable — (chemistry, of carbon) Able to be converted to graphite.
- graphological — Relating to graphology.
- graticulation — the division of a design, plan, etc into squares in order to improve the accuracy of enlargement or reduction
- gravel-voiced — speaking in a rough and rasping tone
- gravitational — Physics. the force of attraction between any two masses. Compare law of gravitation. an act or process caused by this force.
- gravity clock — a clock driven by its own weight as it descends a rack, cord, incline, etc.
- gravity fault — a fault along an inclined plane in which the upper side or hanging wall appears to have moved downward with respect to the lower side or footwall (opposed to reverse fault).
- gravity scale — a scale giving the relative density of fluids
- gray squirrel — a common, grayish squirrel, Sciurus carolinensis, of eastern North America.
- grease nipple — a metal nipple designed to engage with a grease gun for injecting grease into a bearing, etc
- grease pencil — a pencil of pigment and compressed grease encased in a spiral paper strip that can be partially unwound to expose a new point and used especially for writing on glossy surfaces.
- great calorie — calorie (sense 2)
- great council — (in Norman England) an assembly composed of the king's tenants in chief that served as the principal council of the realm and replaced the witenagemot.
- great lobelia — a North American plant, Lobelia siphilitica, having long, showy clusters of blue flowers.
- greek revival — a style of architecture, furnishings, and decoration prevalent in the U.S. and in parts of Europe in the first half of the 19th century, characterized by a more or less close imitation of ancient Greek designs and ornamented motifs.
- grylloblattid — a primitive insect of the order Grylloblattidea, having a soft, unpigmented wingless body with long antennae and no eyes, living under stones in moderately high mountains of the western U.S., Japan, and the U.S.S.R.
- gubernatorial — of or relating to a state governor or the office of state governor.
- guerrilla gig — an impromptu musical performance in an unlikely public space, such as an underground train or on the roof of a building, organized by text-message communication between the band and its fans
- guerrilla war — a war between an established army and a guerrilla group
- gulf of sidra — a wide inlet of the Mediterranean on the N coast of Libya
- haemodialyzer — a piece of equipment used in haemodialysis to screen the blood to remove unwanted substances
- hair clippers — device for trimming hair
- hair follicle — a small cavity in the epidermis and corium of the skin, from which a hair develops.
- hairsplitting — the making of unnecessarily fine distinctions.
- half mourning — a mourning garb less somber than deep mourning, usually following a period of deep mourning.
- half-integral — noting or pertaining to a fractional number obtained by dividing an odd integer by two, as 1/2.
- half-mourning — a mourning garb less somber than deep mourning, usually following a period of deep mourning.
- half-silvered — (of a mirror) having an incomplete reflective coating, so that half the incident light is reflected and half transmitted: used in optical instruments and two-way mirrors
- half-timbered — (of a house or building) having the frame and principal supports of timber and the interstices filled in with masonry, plaster, or the like.
- halicarnassus — an ancient city of Caria, in SW Asia Minor: site of the Mausoleum, one of the seven wonders of the ancient world.
- hallucinatory — pertaining to or characterized by hallucination: hallucinatory visions.
- halobacterium — Any of various extremophiles, of genus Halobacterium, found in water saturated or nearly saturated with salt.
- hard as nails — tough, durable
- hard feelings — Hard feelings are feelings of anger or bitterness towards someone who you have had an argument with or who has upset you. If you say 'no hard feelings', you are making an agreement with someone not to be angry or bitter about something.
- hardenability — The quality or degree of being hardenable.
- hardwick hall — an Elizabethan mansion near Chesterfield in Derbyshire: built 1591–97 for Elizabeth, Countess of Shrewsbury (Bess of Hardwick)
- harlequin bug — a black stink bug, Murgantia histrionica, having red and yellow markings, that feeds on cabbages and other cruciferous plants.
- harlequinades — Plural form of harlequinade.
- hazard lights — Usually, hazard lights. an indicator light on a vehicle that flashes to warn that it is unexpectedly slowing down, reversing, or not moving.
- headline rate — a basic rate of inflation, taxation, etc, before distorting factors have been removed
- heart failure — a condition in which the heart fatally ceases to function.
- heli-boarding — the sport of snowboarding on mountains or glaciers accessible only by helicopter or skiplane
- heliographing — Present participle of heliograph.
- heliotropical — heliotropic
- helispherical — spiral
- hellgrammites — Plural form of hellgrammite (Alternative spelling of hellgramites).
- hemispherical — having the form of a hemisphere.
- heortological — of or relating to heortology