12-letter words containing a, t, r, h, s, i
- harvest mite — chigger (def 1).
- harvest tick — chigger (def 1).
- harvest time — season when crops are gathered
- headmistress — a woman in charge of a private school.
- hearing test — a test to establish whether someone's hearing is normal or whether they have suffered some degree of hearing loss
- heartstrings — (obsolete, anatomy) The tendons once thought to brace the heart. (15th-19th c.).
- hellgramites — Plural form of hellgramite.
- hemarthrosis — (pathology) bleeding in the joints.
- hemihydrates — Plural form of hemihydrate.
- hemiparasite — A plant that obtains or may obtain part of its food by parasitism, e.g., mistletoe, which also photosynthesizes.
- hernioplasty — an operation for the repair of a hernia.
- heterauxesis — an unequal or asymmetrical growth of cells, parts of plants or animals
- heteroousian — a person who believes the Father and the Son to be unlike in substance or essence; an Arian (opposed to Homoousian).
- heteroplasia — the replacement of normal cells by abnormal cells, as in cancer.
- heterosocial — relating to or denoting mixed-sex social relationships
- heterotopias — Plural form of heterotopia.
- hibernations — Plural form of hibernation.
- hidradenitis — (medicine) inflammation of the sweat glands.
- hidrocystoma — An adenoma of the sweat glands.
- hierarchists — hierarchical principles, rule, or influence.
- high treason — treason against the sovereign or state.
- hindquarters — the posterior end of a halved carcass of beef, lamb, etc., sectioned usually between the twelfth and thirteenth ribs.
- histographic — a treatise on or description of organic tissues.
- historically — of, pertaining to, treating, or characteristic of history or past events: historical records; historical research.
- histrionical — (British) Alternative form of histrionic.
- holophrastic — using or consisting of a single word that functions as a phrase or sentence.
- holothurians — Plural form of holothurian.
- horse trials — a competitive sporting event at which riders have to show their skill in dressage, show-jumping, and cross-country
- horse's tail — burro's tail.
- house martin — a small European swallow, Delichon urbica, that builds its nest under the eaves of houses.
- housepainter — A professional painter of houses.
- housetrained — Simple past tense and past participle of housetrain.
- human rights — basic civil freedoms
- hyannis port — a town in SE Massachusetts, on Nantucket Sound: summer resort.
- hydrastinine — a white, crystalline, poisonous alkaloid, C 11 H 13 NO 3 , synthesized from hydrastine: used to arrest bleeding, especially in the uterus.
- hydroelastic — undergoing a change in elasticity as a result of the flow of water or another fluid
- hydronautics — (nautical) The science of the design and construction of ships, their engines, and their instrumentation.
- hydrostatics — the branch of hydrodynamics that deals with the statics of fluids, usually confined to the equilibrium and pressure of liquids.
- hygrochastic — of or relating to the opening of a fruit or flower caused by water or moisture
- hyperplastic — Of, or relating to hyperplasia.
- hyperspatial — Pertaining to hyperspace.
- hypersthenia — abnormal strength or tension
- hypogastrium — the lower and median part of the abdomen.
- hysterically — of, relating to, or characterized by hysteria.
- hysteromania — unusually increased sexual desire in a woman
- iatrochemist — a person who practises iatrochemistry
- ichthyosaurs — Plural form of ichthyosaur.
- idea hamster — a person who is employed as a source of new ideas
- in the cards — a usually rectangular piece of stiff paper, thin pasteboard, or plastic for various uses, as to write information on or printed as a means of identifying the holder: a 3″ × 5″ file card; a membership card.
- inheritances — Plural form of inheritance.