17-letter words containing h, y, e, t, a
- dephosphorylation — the removal of a phosphate group from an organic compound, as in the changing of ATP to ADP.
- despotic monarchy — absolute monarchy.
- desynchronisation — (British spelling) Alternative form of desynchronization.
- desynchronization — to cause to indicate the same time, as one timepiece with another: Synchronize your watches.
- dialect geography — linguistic geography
- dibutyl phthalate — a colorless oily liquid, C 16 H 22 O 4 , insoluble in water, used as a solvent, insect repellent, and plasticizer.
- diethyltryptamine — a synthetic derivative of tryptamine with hallucinogenic and psychotogenic effects. Abbreviation: DET.
- dihydroergotamine — an ergot alkaloid, C 33 H 37 N 5 O 5 , used in the treatment of various types of migraine headache.
- dimethylformamide — a colourless liquid widely used as a solvent and sometimes as a catalyst. Formula: (CH3)2NCHO
- dimethylhydrazine — a flammable, highly toxic, and colorless liquid, C 2 H 8 N 2 , used as a component in jet and rocket fuels.
- diphenylacetylene — tolan.
- diphenylhydantoin — a white, slightly water-soluble powder, C 15 H 11 N 2 O 2 , used in the form of its sodium salt to prevent or arrest convulsions in epilepsy.
- eastern orthodoxy — the faith, practice, membership, and government of the Eastern Orthodox Church.
- edward the martyr — Saint. ?963–978 ad, king of England (975–78), son of Edgar: murdered. Feast day: March 18
- electrochemically — In an electrochemical manner.
- electromyographic — Using electromyography.
- elementary school — primary school
- embroidery thread — a thread used for embroidery
- encephalomyelitic — Relating to encephalomyelitis.
- encephalomyelitis — Inflammation of the brain and spinal cord, typically due to acute viral infection.
- ethinyloestradiol — Alternative form of ethinylestradiol.
- ethnopharmacology — The scientific study correlating ethnic groups, their health, and how it relates to their physical habits and methodology in creating and using medicines.
- geothermal energy — Geothermal energy is energy from temperature differences inside the earth's crust.
- glymphatic system — Anatomy. the system or process by which cerebrospinal fluid moves through channels formed by glia, cleansing the mammalian brain of harmful waste.
- go by the wayside — to be put aside on account of something more urgent
- go out of the way — to inconvenience oneself; do something that one would not ordinarily do, or that requires extra or deliberate effort or trouble
- great grey shrike — the bird Lanius excubitor
- haematocrystallin — Alternative form of hematocrystallin.
- haemoglobinopathy — (medicine) Any of a group of inherited disorders in which haemoglobin does not function properly.
- haemorrhoidectomy — surgical removal of haemorrhoids
- hairy-tailed mole — a blackish North American mole, Parascalops breweri, having a short, hairy tail.
- hamiltonian cycle — Hamiltonian problem
- have it both ways — to try to get the best of a situation, argument, etc, by chopping and changing between alternatives or opposites
- health care proxy — a legal document in which a person can appoint someone to make decisions about medical treatment in the event that he or she is no longer mentally competent or able to communicate.
- henry cabot lodge — Henry Cabot, 1850–1924, U.S. public servant and author: senator 1893–1924.
- henry of portugal — ("the Navigator") 1394–1460, prince of Portugal: sponsor of geographic explorations.
- heritage industry — an industry that manages the historical sites, buildings, and museums in a particular place, with the aim of encouraging tourism
- heterochlamydeous — (of a plant) having a perianth consisting of distinct sepals and petals
- heteronormativity — The view that all human beings are either male or female, both in sex and in gender, and that sexual and romantic thoughts and relations are normal only when between people of different sexes.
- homeland security — national defence
- hospitality suite — a suite or room, as in a hotel or convention center, rented by a business firm, political candidate, or the like, to meet and entertain clients, potential customers, etc.
- how's-your-father — sexual intercourse
- hyaline cartilage — the typical, translucent form of cartilage, containing little fibrous tissue.
- hydroelectrically — Using hydroelectric power.
- hydrotherapeutics — hydrotherapy.
- hydrotherapy pool — a pool of water used for hydrotherapy
- hydrothermal vent — an opening on the floor of the sea from which hot, mineral-rich solutions issue. Compare vent1 (def 2).
- hydroxytryptamine — (organic compound) Any hydroxy derivative of tryptamine, but especially 5-hydroxytryptamine (serotonin).
- hyper-peristalsis — the progressive wave of contraction and relaxation of a tubular muscular system, especially the alimentary canal, by which the contents are forced through the system.
- hyperalimentation — overfeeding.