10-letter words containing y, o
- gyrfalcons — Plural form of gyrfalcon.
- gyro pilot — automatic pilot.
- gyrocopter — autogiro.
- gyroscopes — Plural form of gyroscope.
- gyroscopic — an apparatus consisting of a rotating wheel so mounted that its axis can turn freely in certain or all directions, and capable of maintaining the same absolute direction in space in spite of movements of the mountings and surrounding parts: used to maintain equilibrium, determine direction, etc.
- gyrostatic — the science that deals with the laws of rotating bodies.
- habilatory — relating to clothes or dressed in clothes
- haemolymph — the blood-like fluid of invertebrates
- haemolyses — Plural form of haemolysis.
- haemolysin — Alternative spelling of hemolysin.
- haemolysis — Alternative spelling of hemolysis.
- haemolytic — of or relating to the disintegration of red blood cells
- hagiocracy — government by a body of persons esteemed as holy.
- hagiolatry — the worship of saints.
- hairy frog — a W African frog, Astylosternus robustus, the males of which have glandular hairlike processes on the flanks
- halcyonian — calm; peaceful; tranquil: halcyon weather.
- half story — a usable living space within a sloping roof, usually having dormer windows for lighting.
- halfhourly — half-hour (def 3).
- halloysite — a refractory clay mineral similar in composition to kaolinite.
- halophytes — Plural form of halophyte.
- halophytic — Growing well under salty conditions.
- handsomely — in a handsome manner; pleasingly; successfully.
- handywoman — Female equivalent of handyman.
- handywomen — Plural form of handywoman.
- hanya holm — Hanya [hahn-ye] /ˌhɑn yɛ/ (Show IPA), 1895?–1992, U.S. dancer, choreographer, and teacher; born in Germany.
- haplotypes — Plural form of haplotype.
- happy hour — a cocktail hour or longer period at a bar, during which drinks are served at reduced prices or with free snacks: happy hour from 5 to 7 p.m.
- hard money — (in the US) money given directly to a candidate in an election to assist his or her campaign
- hary janos — an opera (1926) by Zoltán Kodály.
- hateworthy — Worthy of being hated, detestable, despicable.
- hatha yoga — (in Yoga) a method utilizing physical exercises to control the body and attain union of the self with the Supreme Being.
- hatha-yoga — (in Yoga) a method utilizing physical exercises to control the body and attain union of the self with the Supreme Being.
- head money — a tax of so much per head or person.
- heliolatry — worship of the sun.
- heliometry — The measurement of the diameters of heavenly bodies, their relative distances, etc.
- heliophyte — a plant that grows best in full sunlight.
- heliotropy — the growth of plants in a particular direction as a response to the stimulus of light, heliotropism
- hematocyst — a cyst containing blood.
- hematocyte — hemocyte.
- hematology — the study of the nature, function, and diseases of the blood and of blood-forming organs.
- hemelytron — one of the forewings of a true bug, having a hard, thick basal portion and a thinner, membranous apex.
- hemikaryon — a haploid nucleus.
- hemizygote — an individual having only one of a given pair of genes.
- hemizygous — an individual having only one of a given pair of genes.
- hemocyanin — a blue, copper-containing respiratory pigment in the plasma of many invertebrates.
- hemolysins — Plural form of hemolysin.
- hemoptysis — the expectoration of blood or bloody mucus.
- henry ford — Elizabeth Bloomer ("Betty") 1918–2011, U.S. First Lady 1974–77 (wife of Gerald R. Ford).
- henry knox — (William) Frank(lin) 1874–1944, U.S. publisher and government official.
- heortology — the study of the history and significance of the feasts and seasons in the ecclesiastical calendar.