13-letter words containing a, d, o, r, t
- ground-to-air — (of weapons) designed to be fired at aircraft from the ground
- 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.
- gunpowder tea — an explosive mixture, as of potassium nitrate, sulfur, and charcoal, used in shells and cartridges, in fireworks, for blasting, etc.
- hampton roads — a channel in SE Virginia between the mouth of the James River and Chesapeake Bay: battle between the Monitor and the Virginia 1862.
- hand controls — a set of controls in some cars, operated by hand, that have the same function as the accelerator, brake, and clutch pedals
- harold burton — Harold Hitz [hits] /hɪts/ (Show IPA), 1888–1964, associate justice of the U.S. Supreme Court 1945–58.
- hartford fern — a climbing or sprawling fern, Lygodium palmatum, of the eastern U.S., having deeply lobed ivylike leaves.
- hathor-headed — (of an ancient Egyptian column) having a capital in the form of the head of Hathor; Hathoric.
- head of water — a quantity of water
- hemichordates — Plural form of hemichordate.
- hermaphrodite — an individual in which reproductive organs of both sexes are present. Compare pseudohermaphrodite.
- hermaphrodyte — (archaic) alternative spelling of hermaphrodite.
- herod antipas — died after a.d. 39, ruler of Galilee, a.d. 4–39: ordered the execution of John the Baptist and participated in the trial of Jesus.
- heroin addict — sb dependent on heroin
- holy saturday — the Saturday in Holy Week.
- holy thursday — Ascension Day.
- horse trading — the act or fact of conducting a shrewd exchange or engaging in a horse trade; bargaining.
- horse-trading — to bargain or trade shrewdly.
- house-trained — housebroken.
- household art — any of the skills necessary to the efficient running of a household, as cooking or keeping a family budget.
- hudson strait — a strait connecting Hudson Bay and the Atlantic. 450 miles (725 km) long; 100 miles (160 km) wide.
- hybridisation — Alternative form of hybridization.
- hybridization — to cause to produce hybrids; cross.
- hydrarthrosis — a build-up of fluid or water in the cavity of a joint, esp the knee joint
- hydroboration — (chemistry) the production or organoboranes by the addition of diborane to unsaturated organic compounds.
- hydrofracture — (geology) Rock fracture caused by the pressure of freezing water.
- hydrogenating — Present participle of hydrogenate.
- hydrogenation — to combine or treat with hydrogen, especially to add hydrogen to the molecule of (an unsaturated organic compound).
- hydropathical — Alternative form of hydropathic.
- hydrostatical — Alternative form of hydrostatic.
- hydrosulphate — a salt formed by the direct union of sulfuric acid with an organic base, especially an alkaloid, and usually more soluble than the base.
- hydroxylation — (organic chemistry) The introduction of a hydroxyl group into a molecule, especially by the replacement of a hydrogen atom.
- hypohydration — Dehydration.
- ideogrammatic — Of or pertaining to ideograms.
- idiochromatic — (of a mineral) deriving a characteristic color from its capacity to absorb certain light rays.
- idiosyncratic — pertaining to the nature of idiosyncrasy, or something peculiar to an individual: The best minds are idiosyncratic and unpredictable as they follow the course of scientific discovery.
- in moderation — not to excess
- in order that — used to introduce a clause of purpose
- inboard motor — a boat's motor that is situated within the hull
- incardination — to institute as a cardinal.
- inconsiderate — without due regard for the rights or feelings of others: It was inconsiderate of him to keep us waiting.
- indoctrinated — to instruct in a doctrine, principle, ideology, etc., especially to imbue with a specific partisan or biased belief or point of view.
- indoctrinates — Third-person singular simple present indicative form of indoctrinate.
- indoctrinator — One who indoctrinates.
- infrigidation — (obsolete) The act of chilling or making cold; congelation.
- insubordinate — not submitting to authority; disobedient: an insubordinate soldier.
- interchondral — of or relating to cartilage or a cartilage.
- intercondylar — Anatomy. the smooth surface area at the end of a bone, forming part of a joint.
- intermediator — to act as an intermediary; intervene; mediate.
- intermodalism — pertaining to or suitable for transportation involving more than one form of carrier, as truck and rail, or truck, ship, and rail.