13-letter words containing t, h, o, r
- homoiothermic — (of birds and mammals) having a constant body temperature, usually higher than the temperature of the surroundings; warm-blooded
- honest broker — a neutral person or organization that mediates disputes; an impartial mediator.
- honor society — (in a college, university, or secondary school) a student society that admits members on the basis of academic merit and, sometimes, worthwhile contributions in extracurricular activities.
- honour bright — an exclamation pledging honour
- honourability — A state or condition or being honourable.
- hoosier state — Indiana (used as a nickname).
- horatio alger — of or characteristic of the heroes in the novels of Horatio Alger, who begin life in poverty and achieve success and wealth through honesty, hard work, and virtuous behavior: the Horatio Alger story of his rise in the business world.
- horizontality — at right angles to the vertical; parallel to level ground.
- hormic theory — a theory that holds all behavior to be purposive, whether conscious or unconscious.
- hornet's nest — a large amount of activity, trouble, hostility, or animosity: His investigation stirred up a hornet's nest, resulting in major shifts in personnel.
- horrification — That which causes horror.
- horripilation — a bristling of the hair on the skin from cold, fear, etc.; goose bumps.
- horror writer — a writer of horror fiction or horror stories
- horror-struck — stricken with horror; horrified; aghast.
- horse gentian — any weedy North American plant of the genus Triosteum, of the honeysuckle family, especially T. perfoliatum, having stalkless leaves and purplish-brown flowers and bearing orange fruits.
- horse stinger — a dragonfly.
- horse trading — the act or fact of conducting a shrewd exchange or engaging in a horse trade; bargaining.
- horse trailer — lorry for transporting a horse
- horse's mouth — horse (def 36).
- horse-trading — to bargain or trade shrewdly.
- horsefeathers — (used with a singular or plural verb) something not worth considering.
- horseshoe bat — any of numerous large-eared Old World insectivorous bats, mostly of the genus Rhinolophus, with a fleshy growth around the nostrils, used in echolocation: family Rhinolophidae
- horticultural — the cultivation of a garden, orchard, or nursery; the cultivation of flowers, fruits, vegetables, or ornamental plants.
- hortus siccus — a collection of dried plants; herbarium.
- hospital care — medical treatment provided in a hospital
- host computer — the main computer in a network: controls or performs certain functions for other computers.
- hot cross bun — a bun with a cross of frosting on it, eaten chiefly during Lent.
- hot gospeller — a person who preaches in a fervent and vocal way, esp in evangelical churches
- hot-water bag — a bag, usually of rubber, for holding hot water to apply warmth to some part of the body, as the feet.
- hotel manager — sb who runs a hotel
- house cricket — a dark brown cricket, Acheta domesticus, having a light-colored head with dark crossbands, commonly occurring throughout North America and Europe, where it may be an indoor pest.
- house painter — a person whose occupation is painting houses.
- house trailer — a trailer fitted with accommodations for sleeping, eating, washing, etc.
- house-trained — housebroken.
- housed string — a string of a stair (housed stair) receiving the ends of the risers or treads in a series of housings.
- household art — any of the skills necessary to the efficient running of a household, as cooking or keeping a family budget.
- housemistress — A female teacher in charge of a dormitory at a boarding school.
- housepainters — Plural form of housepainter.
- housetraining — Present participle of housetrain.
- housing start — an instance of beginning the construction of a dwelling.
- how's tricks? — how are you?
- hudson strait — a strait connecting Hudson Bay and the Atlantic. 450 miles (725 km) long; 100 miles (160 km) wide.
- hunt saboteur — A hunt saboteur is someone who tries to stop a hunt from taking place or being successful because they believe it is cruel to the animal being hunted.
- hunter's moon — the first full moon following the harvest moon in late September or early October.
- hunter's robe — pothos.
- hunting sword — a short, light saber of the 18th century, having a straight or slightly curved blade.
- 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.