13-letter words containing a, t, h, b
- halobacterium — Any of various extremophiles, of genus Halobacterium, found in water saturated or nearly saturated with salt.
- handleability — a part of a thing made specifically to be grasped or held by the hand.
- harbor master — an official who supervises operations in a harbor area and administers its rules.
- harbourmaster — (British, Canada, nautical) An official responsible for the enforcement of regulations in a port.
- hardenability — The quality or degree of being hardenable.
- harold burton — Harold Hitz [hits] /hɪts/ (Show IPA), 1888–1964, associate justice of the U.S. Supreme Court 1945–58.
- heart problem — a defect or disease of the heart
- heart trouble — cardiac condition
- heartbreakers — Plural form of heartbreaker.
- heartbreaking — causing intense anguish or sorrow.
- heartbrokenly — In a heartbroken manner.
- heavily built — with a big heavy body
- helianthine b — methyl orange.
- hemimetabolic — (zoology) Having an incomplete metamorphosis, the larvae differing from the adults chiefly in lacking wings.
- hemocytoblast — a primordial cell capable of developing into any type of blood cell.
- hepatobiliary — Of, pertaining to, or originating in the liver, bile ducts and gallbladder.
- heptasyllabic — having seven syllables
- heptasyllable — a word or line of verse of seven syllables.
- herb patience — a European plant, Rumex patientia, of the buckwheat family, naturalized in North America, having long, wavy-margined, basal leaves used for salads.
- herborization — the act or process of herborizing
- hessian boots — a knee-high tasseled boot, fashionable in England in the early 19th century.
- heteroblastic — (of a plant or plant part) showing a marked difference in form between the juvenile and the adult structures
- hilbert space — a complete infinite-dimensional vector space on which an inner product is defined.
- holometabolic — Of, pertaining to, or undergoing holometabolism.
- honourability — A state or condition or being honourable.
- 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
- hospitability — The quality of being hospitable.
- hospital bill — the bills incurred for receiving hospital treatment
- hot-swappable — (of devices, disks, etc) capable of being inserted or removed from a computer system that is running, without causing damage or affecting performance
- hot-water bag — a bag, usually of rubber, for holding hot water to apply warmth to some part of the body, as the feet.
- hothouse lamb — a lamb born in the fall or early winter, usually reared indoors, specially fed, and marketed when from 9 to 16 weeks of age.
- hubristically — in a presumptuous or arrogant manner
- humboldt peak — a mountain in S Colorado, in the Sangre de Cristo range. 14,064 feet (4290 meters).
- 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.
- hyacinth bean — an Old World tropical vine, Dolichos lablab, of the legume family, having purple or white flowers and black or white seeds in a papery, beaked pod.
- hybridisation — Alternative form of hybridization.
- hybridization — to cause to produce hybrids; cross.
- hydroboration — (chemistry) the production or organoboranes by the addition of diborane to unsaturated organic compounds.
- hypobaropathy — a condition produced in high altitudes, caused by diminished air pressure and reduced oxygen intake; mountain sickness.
- hypometabolic — Relating to hypometabolism.
- immunity bath — the giving of testimony that is self-incriminating in order to avail oneself of the immunity granted a witness.
- inexhaustible — not exhaustible; incapable of being depleted: an inexhaustible supply.
- inexhaustibly — not exhaustible; incapable of being depleted: an inexhaustible supply.
- inhabitancies — Plural form of inhabitancy.
- inhabitations — Plural form of inhabitation.
- isobathytherm — a line on a chart or diagram of a body of water, connecting depths having the same temperature.
- isothermobath — a line drawn on a diagram of a vertical section of the ocean connecting all points having equal temperature.
- khapra beetle — a tiny cosmopolitan beetle, Trogoderma granarium, that is a pest of stored grain and other dried organic matter.
- know by heart — have memorized
- labyrinthical — Labyrinthine; like or relating to a labyrinth.