12-letter words containing a, t, h, e, o
- herpetofauna — the reptiles and amphibians that inhabit a given area
- herring boat — a fishing boat that specializes in catching herring
- hessian boot — a knee-high tasseled boot, fashionable in England in the early 19th century.
- heteroblasty — the morphological changes that occur in plants between juvenility and adulthood
- heterocercal — having an unequally divided tail, characteristic of sharks, rays, and skates.
- heterodactyl — having the first and fourth toes directed backward, and the second and third forward, as in trogons.
- heterogamete — either of a pair of conjugating gametes differing in form, size, structure, or sex.
- heterogamety — the condition or state of being heterogametic
- heterogamous — Genetics. having unlike gametes, or reproducing by the union of such gametes (opposed to isogamous).
- heterografts — Plural form of heterograft.
- heterography — spelling different from that in current use.
- heterokaryon — a cell containing two or more nuclei of differing genetic constitutions.
- heterokontan — of or relating to a heterokont
- heteroousian — a person who believes the Father and the Son to be unlike in substance or essence; an Arian (opposed to Homoousian).
- heterophobia — Fear or resentment of what is different.
- heterophoria — a latent strabismus of one or both eyes.
- heteroplasia — the replacement of normal cells by abnormal cells, as in cancer.
- heteroplasty — the repair of lesions with tissue from another individual or species.
- heteropteran — A bug of the group Heteroptera.
- heterosexual — of, relating to, or exhibiting heterosexuality.
- heterosocial — relating to or denoting mixed-sex social relationships
- heterotactic — of, relating to, or characterized by heterotaxis.
- heterothally — the condition of being heterothallic
- heterotopias — Plural form of heterotopia.
- hexobarbital — a barbiturate with hypnotic and sedative properties
- hibernations — Plural form of hibernation.
- hierogrammat — a writer of hierograms.
- hierophantic — (in ancient Greece) an official expounder of rites of worship and sacrifice.
- high treason — treason against the sovereign or state.
- high voltage — high-power electricity
- high-voltage — operating on or powered by high voltage: a high-voltage generator.
- hippocentaur — Centaur.
- hit the road — a long, narrow stretch with a smoothed or paved surface, made for traveling by motor vehicle, carriage, etc., between two or more points; street or highway.
- hockey skate — a tubular ice skate having a shorter blade than a racing skate and often having a reinforced shoe for protection.
- hohenstaufen — a member of the royal family that ruled in Germany from 1138 to 1208 and from 1215 to 1254, and in Sicily from 1194 to 1266.
- hojatoleslam — a title of respect given to an ayatollah or a middle-ranking Shiite cleric, which means literally 'proof of Islam'
- holkar state — a former state of central India, ruled by the Holkar dynasty of Maratha rulers of Indore (18th century until 1947)
- home staging — the professional service of preparing homes for sale in such a way as to appeal to potential buyers and generate higher selling prices: Realtors who encourage sellers to invest in home staging are reporting substantial monetary returns—for both themselves and their clients.
- home teacher — private tutor
- home theater — big-screen TV setup
- homeopathist — a person who practices or favors homeopathy.
- homeotherapy — therapy for a disease by means of an agent that is similar to but not identical with the causative agent of the disease.
- homeothermal — homoiothermal.
- homesteaders — Plural form of homesteader.
- homesteading — a dwelling with its land and buildings, occupied by the owner as a home and exempted by a homestead law from seizure or sale for debt.
- homoeopathic — Alternative spelling of homeopathic.
- homoeostasis — Alternative spelling of homeostasis.
- homolecithal — having a fairly uniform distribution of yolk, as certain eggs or ova having relatively little yolk.
- hootenannies — Plural form of hootenanny.
- horatian ode — an ode consisting of several stanzas all of the same form.