12-letter words containing t, h, r, a, l
- hearteningly — In a heartening way; cheeringly.
- heartfulness — The state or quality of being heartful.
- helicobacter — Any member of the Helicobacter bacteria.
- heliotherapy — treatment of disease by means of sunlight.
- hellgramites — Plural form of hellgramite.
- hellgrammite — the aquatic larva of a dobsonfly, used as bait in fishing.
- hereditarily — passing, or capable of passing, naturally from parent to offspring through the genes: Blue eyes are hereditary in our family. Compare congenital.
- heritability — capable of being inherited; inheritable; hereditary.
- hermetically — so as to be airtight: hermetically sealed.
- hernioplasty — an operation for the repair of a hernia.
- 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.
- heteroplasia — the replacement of normal cells by abnormal cells, as in cancer.
- heteroplasty — the repair of lesions with tissue from another individual or species.
- heterosexual — of, relating to, or exhibiting heterosexuality.
- heterosocial — relating to or denoting mixed-sex social relationships
- heterothally — the condition of being heterothallic
- hever castle — a Tudor mansion near Edenbridge in Kent: home of Anne Boleyn before her marriage; Italian garden added in the 20th century by the Astor family
- hexobarbital — a barbiturate with hypnotic and sedative properties
- hieratically — In a hieratic way.
- highly rated — generally considered to be of high quality
- hiking trail — a specially designated route for hikers to use
- hinterlander — One who lives in the hinterland.
- historically — of, pertaining to, treating, or characteristic of history or past events: historical records; historical research.
- histrionical — (British) Alternative form of histrionic.
- holkar state — a former state of central India, ruled by the Holkar dynasty of Maratha rulers of Indore (18th century until 1947)
- holophrastic — using or consisting of a single word that functions as a phrase or sentence.
- holothurians — Plural form of holothurian.
- homeothermal — homoiothermal.
- honorability — (American spelling) Alternative form of honourability.
- horizontally — at right angles to the vertical; parallel to level ground.
- horometrical — Relating to horometry.
- 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.
- hydroelastic — undergoing a change in elasticity as a result of the flow of water or another fluid
- hydrolysates — Plural form of hydrolysate.
- hydrosulfate — a salt formed by the direct union of sulfuric acid with an organic base, especially an alkaloid, and usually more soluble than the base.
- hydrothermal — noting or pertaining to the action of hot, aqueous solutions or gases within or on the surface of the earth.
- hydroxylated — Simple past tense and past participle of hydroxylate.
- hygrothermal — (physics) Of or pertaining to both humidity and temperature.
- hyper-lethal — of, relating to, or causing death; deadly; fatal: a lethal weapon; a lethal dose.
- hyperdactyly — the presence of extra fingers or toes.
- hyperinflate — to subject to hyperinflation: hyperinflated prices.
- hypermutable — Of or in a state in which mutation is abnormally frequent.
- hyperplastic — Of, or relating to hyperplasia.
- hyperreality — The state or condition of being hyperreal.
- hyperspatial — Pertaining to hyperspace.
- hypertextual — Of or relating to hypertext.
- hyperthermal — Also, thermic. of, relating to, or caused by heat or temperature: thermal capacity.