13-letter words containing c, h, i, a, o, u
- hail columbia — hell (used as a euphemism): He caught Hail Columbia for coming home late.
- half coupling — a flange fixed at the end of each of the two shafts that are connected in a flange coupling
- hallucination — a sensory experience of something that does not exist outside the mind, caused by various physical and mental disorders, or by reaction to certain toxic substances, and usually manifested as visual or auditory images.
- hallucinatory — pertaining to or characterized by hallucination: hallucinatory visions.
- hallucinogens — Plural form of hallucinogen.
- halobacterium — Any of various extremophiles, of genus Halobacterium, found in water saturated or nearly saturated with salt.
- haruspication — the use of animal entrails for divination
- hash function — (programming) A hash coding function which assigns a data item distinguished by some "key" into one of a number of possible "hash buckets" in a hash table. The hash function is usually combined with another more precise function. For example a program might take a string of letters and put it in one of twenty six lists depending on its first letter. Ideally, a hash function should distribute items evenly between the buckets to reduce the number of hash collisions. If, for example, the strings were names beginning with "Mr.", "Miss" or "Mrs." then taking the first letter would be a very poor hash function because all names would hash the same.
- honoris causa — for the sake of honour
- horticultural — the cultivation of a garden, orchard, or nursery; the cultivation of flowers, fruits, vegetables, or ornamental plants.
- housecleaning — the act of cleaning a house, room, etc., and its furnishings, especially the act of cleaning thoroughly and completely.
- human cloning — the act of producing a human as a clone
- hypercautious — Especially or unreasonably cautious.
- hyracotherium — eohippus.
- ichthyofaunal — relating to ichthyofauna
- ichthyosaurus — ichthyosaur.
- jodhpuri coat — a coat worn by men in India, similar to but shorter than a sherwani
- laughingstock — an object of ridicule; the butt of a joke or the like: His ineptness as a public official made him the laughingstock of the whole town.
- launch window — a precise time period during which a spacecraft can be launched from a particular site in order to achieve a desired mission, as a rendezvous with another spacecraft.
- literacy hour — (in England and Wales) a daily reading and writing lesson that was introduced into the national primary school curriculum in 1998 to raise standards of literacy
- logical truth — the property of being logically tautologous
- mare chronium — an area in the southern hemisphere of Mars, appearing as a dark region when viewed telescopically from the earth.
- melancholious — (obsolete) melancholy.
- microcephalus — An abnormally small head.
- musicotherapy — the treatment of mental disorders with music
- neurochemical — of or relating to neurochemistry.
- non-rheumatic — pertaining to or of the nature of rheumatism.
- nonchauvinist — a person who is not a chauvinist
- nouveau riche — a person who is newly rich: the ostentation of the nouveaux riches of the 1920s.
- ocean sunfish — a brown and gray mola, Mola mola, inhabiting tropical and temperate seas, having the posterior half of the body sharply truncated behind the elongated dorsal and anal fins.
- packing house — A packing house is a company that processes and packs food, especially meat, to be sold.
- pentastichous — (of plant leaves) arranged in five vertical rows
- photoacoustic — optoacoustic
- poison sumach — an anacardiaceous swamp shrub, Rhus (or Toxicodendron) vernix of the southeastern US, that has greenish-white berries and causes an itching rash on contact with the skin
- quadraphonics — high-fidelity sound reproduction involving signals transmitted through four different channels.
- quadriphonics — quadraphony.
- schizaeaceous — relating to a type of extinct fern
- south african — of southern Africa.
- south america — a continent in the S part of the Western Hemisphere. About 6,900,000 sq. mi. (17,871,000 sq. km).
- sphagnicolous — growing in moss
- tautochronism — the fact or quality of being a tautochrone
- tetrastichous — arranged in a spike of four vertical rows, as flowers.
- thoracic duct — the main trunk of the lymphatic system, passing along the spinal column in the thoracic cavity, and conveying a large amount of lymph and chyle into the venous circulation.
- thurification — the act of incense-burning
- touch-in-goal — the area at each end of the field outside of a touch-in-goal line.
- touchline ban — an official prohibition of a manager or coach from being present on or near the field during a match
- toxicophagous — poison-eating
- turbocharging — the process or action of supplying an internal combustion engine or a motor vehicle with a turbocharger
- unchlorinated — not chlorinated; not treated with chlorine
- unreproaching — not reproaching or blaming