16-letter words containing t, h, a, c
- hairbrush cactus — a stout, spiny cactus, Pachycereus pecten-aboriginum, of Mexico, having white flowers and bristly fruits sometimes used locally as combs.
- hamming distance — (data) The minimum number of bits that must be changed in order to convert one bit string into another. Named after the mathematician Richard Hamming.
- hanseatic league — a medieval league of towns of northern Germany and adjacent countries for the promotion and protection of commerce.
- haptic interface — (interface, hardware) A touch interface to a computer that provides feedback, such as a data glove.
- have the decency — If you say that someone did not have the decency to do something, you are criticizing them because there was a particular action which they did not do but which you believe they ought to have done.
- hawthorne effect — a positive change in the performance of a group of persons taking part in an experiment or study due to their perception of being singled out for special consideration.
- hay-scented fern — a fern, Dennstaedtia punctilobula, of eastern North America, having brittle, yellow-green fronds.
- hayes-compatible — (communications) A description of a modem which understands the same set of commands as one made by Hayes.
- head post office — the main post office in a town
- health education — education that aims to give people the information they need to live healthily
- health inspector — a public employee who inspects places such as restaurants, shops, factories etc to make sure they are hygienic and do not pose any dangers to health
- health insurance — insurance that compensates the insured for expenses or loss incurred for medical reasons, as through illness or hospitalization.
- health-conscious — having an active interest in one's health
- healthcare 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.
- heat of reaction — the heat evolved or absorbed when one mole of a product is formed at constant pressure
- heavy with child — pregnant
- heliotherapeutic — Pertaining to heliotherapy.
- hematocrit-value — a centrifuge for separating the cells of the blood from the plasma.
- hematocrystallin — (biology, archaic) hemoglobin.
- hemolytic anemia — an anemic condition characterized by the destruction of red blood cells: seen in some drug reactions and in certain infectious and hereditary disorders.
- hemotherapeutics — hemotherapy.
- hepatopancreases — Plural form of hepatopancreas.
- hermaphroditical — Alternative form of hermaphroditic.
- heroin addiction — addiction to the drug heroin
- hexachloroethane — a colorless crystalline compound, C 2 Cl 6 , with a camphorlike odor, soluble in alcohol and ether, insoluble in water: used in organic synthesis and pyrotechnics, as a retarding agent in fermentation, and as a solvent.
- hierophantically — In a hierophantic manner; in the manner of a hierophant.
- high-maintenance — needing frequent maintenance or repair: My bike is high-maintenance; this is its third front wheel this month.
- higher education — education beyond high school, specifically that provided by colleges and graduate schools, and professional schools.
- hippocratic oath — an oath embodying the duties and obligations of physicians, usually taken by those about to enter upon the practice of medicine.
- historical novel — a novel within the genre of historical fiction.
- hit a brick wall — unable to continue or make progress because of a hindrance
- homeric laughter — loud, hearty laughter, as of the gods.
- homeroom teacher — the teacher attached to the homeroom of a group of students
- horizon distance — Television. the distance of the farthest point on the earth's surface visible from a transmitting antenna.
- horsetail agaric — the shaggy-mane.
- horticulturalist — Misspelling of horticulturist.
- hospital corners — a fold on a bed sheet or blanket made by tucking the foot or head of the sheet straight under the mattress with the ends protruding and then making a diagonal fold at the side corner of the sheet and tucking this under to produce a triangular corner.
- hospital service — the whole organization of government funded hospitals, their staff, and the services they provide
- hot-cathode tube — thermionic tube.
- huntington beach — a city in SW California, SE of Los Angeles.
- hydraulic cement — cement that can solidify under water.
- hydrostatic head — The hydrostatic head is the vertical height of a column of fluid.
- hyperaccumulator — a plant that absorbs toxins, such as heavy metals, to a greater concentration than that in the soil in which it is growing
- hyperconjugation — (organic chemistry) A weak form of conjugation in which single bonds interact with a conjugated system.
- hypermasculinity — pertaining to or characteristic of a man or men: masculine attire.
- hypervascularity — pertaining to, composed of, or provided with vessels or ducts that convey fluids, as blood, lymph, or sap.
- hypnagogic state — the drowsy period between wakefulness and sleep, during which fantasies and hallucinations often occur.
- hypocoristically — In a hypocoristic manner.
- hyponitrous acid — an unstable, crystalline acid, H 2 N 2 O 2 .
- hypostatic union — (In Cristianity) Christ's condition of being, at the same time, both human and divine