12-letter words containing t, o, l, e, h
- heliotropism — heliotropic tendency or growth.
- hellespontus — an area in the southern hemisphere of Mars.
- hello packet — (networking, communications) An OSPF packet sent periodically on each network interface, real or virtual, to discover and test connections to neighbours. Hello packets are multicast on physical networks capable of multicasting or broadcasting to enable dynamic router discovery. They include the parameters that routers connected to a common network must agree on. Hello packets increase network resilience by, e.g., allowing a router to establish a secondary connection when a primary connection fails.
- help on with — If you help someone on with an item of clothing, you help them put it on.
- hematoblasts — Plural form of hematoblast.
- hematocolpos — (medicine) A medical condition in which the vagina fills with menstrual blood, often caused by the combination of menstruation with an imperforate hymen.
- hematologist — the study of the nature, function, and diseases of the blood and of blood-forming organs.
- hemimetaboly — Hemimetabolism.
- hemiplankton — plankton that spend part of their life cycle in a vegetative state on the sea bottom, riverbed, etc. (opposed to holoplankton).
- hemodilution — a decreased concentration of cells and solids in blood, usually caused by an influx of fluid.
- heortologist — a person who studies heortology
- hepaticology — the scientific study of bryophyte plants known as hepatics or liverworts
- hepatomegaly — an abnormal enlargement of the liver, usually associated with liver disease or heart failure.
- hernioplasty — an operation for the repair of a hernia.
- herpetologic — Alternative form of herpetological.
- heteroblasty — the morphological changes that occur in plants between juvenility and adulthood
- heterocercal — having an unequally divided tail, characteristic of sharks, rays, and skates.
- heteroclisis — (grammar) The presence of two or more classes of inflection in the inflectional paradigm of a noun, verb etc.
- heteroclites — Plural form of heteroclite.
- heteroclitic — (linguistics) In linguistics, particularly Indo-European Studies, signifying a stem which alternates between more than one form when declined for grammatical case. Examples of heteroclitic noun stems in Proto-Indo-European include '*wod-r/n-'
- heterocyclic — of or relating to the branch of chemistry dealing with cyclic compounds in which at least one of the ring members is not a carbon atom (contrasted with homocyclic).
- heterodactyl — having the first and fourth toes directed backward, and the second and third forward, as in trogons.
- heteroduplex — having polynucleotide strands derived from two different sources
- heteroleptic — (chemistry) Describing an organometallic compound having two or more types of ligand.
- heterologous — Biology. of different origin; pertaining to heterology.
- heterophilic — Also, heterophilic. Immunology. (of an antibody) having an affinity for an antigen other than its specific antigen.
- heteroplasia — the replacement of normal cells by abnormal cells, as in cancer.
- heteroplasty — the repair of lesions with tissue from another individual or species.
- heteroploidy — (genetics) The state of being heteroploid.
- heterosexual — of, relating to, or exhibiting heterosexuality.
- heterosocial — relating to or denoting mixed-sex social relationships
- heterostyled — (of a plant) having styles of different forms or lengths in the flowers.
- heterothally — the condition of being heterothallic
- hexobarbital — a barbiturate with hypnotic and sedative properties
- high voltage — high-power electricity
- high-voltage — operating on or powered by high voltage: a high-voltage generator.
- hobble skirt — a woman's skirt that is very narrow at the bottom, causing the wearer to walk with short, mincing steps.
- 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)
- holmes light — a canister, attached to a life buoy or float, containing calcium carbonate and calcium phosphide, which ignite spontaneously on contact with the water, emitting conspicuous fire and smoke.
- holopneustic — having all the spiracles open, as the tracheal systems of most insects.
- holy picture — a picture of a person or thing that is of religious importance
- holy thistle — lady's-thistle.
- homeothermal — homoiothermal.
- homolecithal — having a fairly uniform distribution of yolk, as certain eggs or ova having relatively little yolk.
- honey locust — a thorny North American tree, Gleditsia triacanthos, of the legume family, having small, compound leaves and pods with a sweet pulp.
- horometrical — Relating to horometry.
- horse nettle — a large, prickly North American weed, Solanum carolinense, of the nightshade family, having violet to white flowers in a few clusters.
- horse pistol — a large pistol formerly carried by horsemen.
- horse trials — a competitive sporting event at which riders have to show their skill in dressage, show-jumping, and cross-country