13-letter words containing h, o, n, r, i
- heterochronic — a genetic shift in timing of the development of a tissue or anatomical part, or in the onset of a physiological process, relative to an ancestor.
- heterogeneity — the quality or state of being heterogeneous; composition from dissimilar parts; disparateness.
- heterogenesis — Also, heterogeny [het-uh-roj-uh-nee] /ˌhɛt əˈrɒdʒ ə ni/ (Show IPA). alternation of generations, especially the alternation of parthenogenetic and sexual generations.
- heterogenetic — of, relating to, or characterized by heterogenesis.
- heteropolitan — a heterosexual man, typically living in a city, whose attitudes and interests are regarded as masculine but not excessively so
- hiberno-saxon — having the characteristics of both the Irish and English; Anglo-Irish.
- hieracosphinx — (in ancient Egyptian art) a hawk-headed sphinx
- hilariousness — The characteristic of being hilarious; hilarity.
- histogramming — (mathematics) The construction of histograms.
- historicizing — Present participle of historicize.
- histrionicism — histrionic behaviour or acts
- homeownership — a person who owns a home.
- honor killing — the killing of a relative, especially a female relative, as retribution for the perceived dishonoring of the family, as dictated or sanctioned by some cultures and religions.
- 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.
- honorifically — In a honorific manner.
- honoris causa — for the sake of honour
- honour bright — an exclamation pledging honour
- honourability — A state or condition or being honourable.
- horizontality — at right angles to the vertical; parallel to level ground.
- horned lizard — an insectivorous iguanid lizard of the genus Phrynosoma, of western North America, having hornlike spines on the head and a flattened body covered with spiny scales.
- hornswoggling — Present participle of hornswoggle.
- horrification — That which causes horror.
- horripilation — a bristling of the hair on the skin from cold, fear, etc.; goose bumps.
- 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-trading — to bargain or trade shrewdly.
- horsewhipping — Present participle of horsewhip.
- house painter — a person whose occupation is painting houses.
- house-raising — a gathering of persons in a rural community to help one of its members build a house.
- house-trained — housebroken.
- house-warming — a party to celebrate a person's or family's move to a new home.
- housebreaking — to train (a pet) to excrete outdoors or in a specific place.
- housed string — a string of a stair (housed stair) receiving the ends of the risers or treads in a series of housings.
- housepainters — Plural form of housepainter.
- housetraining — Present participle of housetrain.
- housewarmings — Plural form of housewarming.
- housing start — an instance of beginning the construction of a dwelling.
- hudson strait — a strait connecting Hudson Bay and the Atlantic. 450 miles (725 km) long; 100 miles (160 km) wide.
- hunting sword — a short, light saber of the 18th century, having a straight or slightly curved blade.
- hyaluronidase — Biochemistry. a mucolytic enzyme found in the testes, in snake venom, and in hemolytic streptococci and certain other bacteria, that decreases the viscosity of the intercellular matrix by breaking down hyaluronic acid.
- hybridisation — Alternative form of hybridization.
- hybridization — to cause to produce hybrids; cross.
- hydroairplane — a hydroplane.
- hydroboration — (chemistry) the production or organoboranes by the addition of diborane to unsaturated organic compounds.
- hydrocracking — the cracking of petroleum or the like in the presence of hydrogen.
- hydrodynamics — the branch of fluid dynamics that deals with liquids, including hydrostatics and hydrokinetics.
- hydrofracking — a process in which fractures in rocks below the earth's surface are opened and widened by injecting chemicals and liquids at high pressure: used especially to extract natural gas or oil.
- hydrogenating — Present participle of hydrogenate.
- hydrogenation — to combine or treat with hydrogen, especially to add hydrogen to the molecule of (an unsaturated organic compound).