13-letter words containing a, n, g, o
- ground-to-air — (of weapons) designed to be fired at aircraft from the ground
- groundbreaker — a person who is an originator, innovator, or pioneer in a particular activity.
- groundhog day — February 2, in most parts of the U.S., the day on which, according to legend, the groundhog first emerges from hibernation. If it is a sunny day and the groundhog sees its shadow, six more weeks of wintry weather are predicted.
- group annuity — a plan in which the members of a group, usually employees of the same company, receive annuities upon retirement.
- group captain — an officer holding commissioned rank senior to a wing commander but junior to an air commodore in the RAF and certain other air forces
- growing pains — If a person or organization suffers from growing pains, they experience temporary difficulties and problems at the beginning of a particular stage of development.
- gubernatorial — of or relating to a state governor or the office of state governor.
- guesstimation — (pejorative) An estimation made without good justification and often biased.
- gunpowder tea — an explosive mixture, as of potassium nitrate, sulfur, and charcoal, used in shells and cartridges, in fireworks, for blasting, etc.
- guzman blanco — Antonio [ahn-taw-nyaw] /ɑnˈtɔ nyɔ/ (Show IPA), 1829–99, Venezuelan political leader: president 1870–88.
- gynaecologist — (UK, Canada, dated in US) A physician who specialises in diseases of the female reproductive system.
- gynaecomastia — abnormal overdevelopment of the breasts in a man
- gynaecophobia — (psychology) An irrational fear of women.
- gynandromorph — an individual exhibiting morphological characteristics of both sexes.
- gynecocracies — Plural form of gynecocracy.
- gynecological — the branch of medical science that deals with the health maintenance and diseases of women, especially of the reproductive organs. Abbreviation: GYN, gyn.
- gyromagnetism — the condition or state of being gyromagnetic
- habit-forming — tending to cause or encourage addiction, especially through physiological dependence: habit-forming drugs.
- hacking cough — a harsh, dry and spasmodic cough
- haematogenous — producing blood
- haemorrhaging — Present participle of haemorrhage.
- half coupling — a flange fixed at the end of each of the two shafts that are connected in a flange coupling
- half mourning — a mourning garb less somber than deep mourning, usually following a period of deep mourning.
- half-mourning — a mourning garb less somber than deep mourning, usually following a period of deep mourning.
- hallucinogens — Plural form of hallucinogen.
- hammond organ — an electric organ with two keyboards, electronic tone generation, and a wide variety of tone colours: invented in 1934
- hand in glove — the terminal, prehensile part of the upper limb in humans and other primates, consisting of the wrist, metacarpal area, fingers, and thumb.
- hand-in-glove — the terminal, prehensile part of the upper limb in humans and other primates, consisting of the wrist, metacarpal area, fingers, and thumb.
- hang together — to fasten or attach (a thing) so that it is supported only from above or at a point near its own top; suspend.
- hart's-tongue — a fern, Phyllitis scolopendrium, having long, leathery, wavy-edged leaves.
- hatemongering — The behaviour of a hatemonger; the spreading of hatred.
- haute-garonne — a department in S France. 2458 sq. mi. (6365 sq. km). Capital: Toulouse.
- heading sword — a sword used for beheading.
- heart surgeon — a surgeon who specializes in performing operations on the heart
- heartstopping — Very exciting or shocking, as though to cause one's heart to skip beats.
- heating power — power that can be used to heat something
- heilong jiang — Amur.
- heli-boarding — the sport of snowboarding on mountains or glaciers accessible only by helicopter or skiplane
- heliographing — Present participle of heliograph.
- hematogenesis — hematopoiesis.
- hemp agrimony — a European composite plant, Eupatorium cannabinum, having dull purplish flowers.
- histogramming — (mathematics) The construction of histograms.
- hognose snake — any harmless North American snake of the genus Heterodon, the several species having an upturned snout and noted for flattening the head or playing dead when disturbed.
- homogenetical — of, involving or relating to homogeny
- homologoumena — the books in the New Testament generally held as authoritative and canonical by the early church.
- hong xiu quan — 1814–64, Chinese religious leader and revolutionary. Claiming (1851) to be Christ's brother, he led the Taiping rebellion; committed suicide when it was defeated
- horse gentian — any weedy North American plant of the genus Triosteum, of the honeysuckle family, especially T. perfoliatum, having stalkless leaves and purplish-brown flowers and bearing orange fruits.
- horse trading — the act or fact of conducting a shrewd exchange or engaging in a horse trade; bargaining.
- horse-trading — to bargain or trade shrewdly.
- hospitalizing — Present participle of hospitalize.