9-letter words containing o, n, a, u
- go-around — an act or instance of going around something, as a circle, course, or traffic pattern, and returning to the starting point.
- gonangium — a reproductive polyp of a colonial hydroid, giving rise asexually to medusa buds.
- gonyaulax — any marine dinoflagellate of the genus Gonyaulax, sometimes occurring in great numbers and causing red tide.
- gourmands — Plural form of gourmand.
- granuloma — an inflammatory tumor or growth composed of granulation tissue.
- granulosa — (anatomy) A layer of small cells that forms the wall of an ovarian follicle.
- granulose — granular.
- granulous — consisting of grains or granules
- grayhound — one of a breed of tall, slender, short-haired dogs, noted for its keen sight and swiftness.
- groundage — a tax levied on ships that anchor in a port.
- groundman — a groundsman
- guanazolo — a synthetic form of guanine that is used to inhibit the growth of tumours
- guangdong — a province in SE China. 89,344 sq. mi. (231,401 sq. km). Capital: Canton.
- guangzhou — Canton.
- guanodine — (biochemistry, genetics) any of the three nucleotides guanosine monophosphate, guanosine diphosphate and guanosine triphosphate.
- guanosine — a ribonucleoside component of ribonucleic acid, comprising ribose and guanine.
- guarantor — a person, group, system, etc., that guarantees.
- gustation — the act of tasting.
- guttation — a process in which water in liquid form is given off by plants.
- hacqueton — an upholstered garment for the upper body worn under chain mail or such a garment covered with chain mail
- handbound — (of books) bound by hand.
- hardbound — (of a book) bound with a stiff cover, usually of cloth or leather; casebound.
- harmonium — an organlike keyboard instrument with small metal reeds and a pair of bellows operated by the player's feet.
- headcount — The act of counting how many people are present in a group.
- hoarhound — an Old World plant, Marrubium vulgare, of the mint family, having downy leaves and small, whitish flowers, and containing a bitter, medicinal juice that is used as an expectorant, vermifuge, and laxative.
- honourary — Misspelling of honorary.
- hour hand — the hand that indicates the hours on a clock or watch.
- houstonia — any North American plant, belonging to the genus Houstonia, of the madder family, especially H. caerulea, the common bluet.
- hu jintao — born 1942, Chinese Communist statesman; president of China (2003–2013)
- humanhood — the state or character of being human
- humanoids — Plural form of humanoid.
- hurricano — (obsolete) A waterspout; a hurricane.
- hydronaut — a person trained to work in deep-sea vessels for research and rescue purposes.
- ignoramus — an extremely ignorant person.
- iguanodon — a plant-eating dinosaur of the genus Iguanodon that lived in Europe early in the Cretaceous Period and grew to a length of from 15 to 30 feet (4.5 to 9 meters) and walked erect on its hind feet.
- iminourea — guanidine.
- in favour — If you are in favour of something, you support it and think that it is a good thing.
- incaution — lack of caution; heedlessness; carelessness.
- incourage — Archaic form of encourage.
- incubator — an apparatus in which eggs are hatched artificially.
- indeavour — Archaic form of endeavour.
- infandous — (obsolete) Extremely odious.
- infusoria — Irregular plural form of infusorium.
- inoculant — inoculum.
- inoculate — to implant (a disease agent or antigen) in a person, animal, or plant to produce a disease for study or to stimulate disease resistance.
- inquorate — (of an assembly) unable to proceed effectively because not enough members are present to make up a quorum.
- insulator — Electricity. a material of such low conductivity that the flow of current through it is negligible. insulating material, often glass or porcelain, in a unit form designed so as to support a charged conductor and electrically isolate it.
- ionopause — the transitional zone between the ionosphere and the mesosphere.
- iroquoian — a family of North American Indian languages that includes Cherokee, Seneca, Mohawk, and Oneida.
- isandrous — having the stamens similar to each other and equal in number to the petals.