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Dictionary Suite
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orthodoxy the condition or quality of being orthodox. [2 definitions]
orthoepy the study of pronunciation; phonology. [2 definitions]
orthography spelling, esp. according to established conventions or in a particular style. [2 definitions]
orthopedics (used with a sing. verb) the branch of medicine dealing with the skeletal system and its associated muscles and joints, esp. with the treatment of skeletal disorders in children.
orthopteran any of a large order of plant-eating insects, including crickets, grasshoppers, and cockroaches, that have hard leathery forewings and membranous hind wings.
orthorhombic of or denoting a pattern of crystallization embodying three mutually perpendicular axes of different lengths.
ortolan a small brown European bunting, sometimes eaten as a delicacy.
Orville and Wilbur Wright two U.S. brothers who invented the first powered flight (Orville, b.1871--d.1948; Wilbur, b.1867--d.1912).
Orwellian of, concerning, or resembling George Orwell, his work, or esp. the totalitarian regime portrayed in his novel 1984.
-ory having the function of; pertaining to; characterized by; causing. [2 definitions]
oryx any of various large antelopes of Africa and southwestern Asia that have long, straight horns and grayish coats with black markings.
orzo pasta resembling grains of rice.
Os symbol of the chemical element osmium.
os1 a bone.
os2 a mouth; opening; aperture.
Osage orange a small thorny tree of the mulberry family, native to the midwestern United States, that is often used in hedgerows. [2 definitions]
Osaka a large port city in southern Honshu, Japan.
Oscar see "Academy Award." [2 definitions]
Óscar Romero El Salvadoran Roman Catholic priest who was assassinated in retaliation for his social and political activity; born Óscar Arnulfo Romero y Galdámez (b.1917--d.1980).
oscillate to swing steadily and repeatedly back and forth. [4 definitions]
oscillation the action or fact of oscillating. [2 definitions]