oeil de boeuf

a circular or oval window; 17th or 18th century French architecture ;

oenanthe

wheatears ; poisonous herbs: water dropworts ;

oenanthe aquatica

European poisonous herb with fibrous roots ;

oenanthe crocata

European poisonous herb having tuberous roots, yellow juice that stains the skin, yellow flowers and foliage resembling celery; all parts extremely poisonous ;

oengus

Celtic god of love and beauty; patron deity of young men and women ;

oenologist

a specialist in wine making ;

oenology

the art of wine making ;

oenomel

wine mixed with honey ;

oenophile

a connoisseur of fine wines; a grape nut ;

oenophilist

a connoisseur of fine wines; a grape nut ;

oenothera

chiefly North American herbs with usually nocturnal flowers ;

oenothera biennis

a coarse biennial of eastern North America with yellow flowers that open in the evening; naturalized in Europe ;

oenothera fruticosa

a day-flowering biennial or perennial of the genus Oenothera ;

oenothera macrocarpa

evening-opening primrose of south central United States ;

oersted

Danish physicist (1777-1851) ; the magnetic field strength 1 cm from a unit magnetic pole ;

oesophageal reflux

reflux of stomach contents into the esophagus ;

oesophageal veins

small veins from the esophagus emptying into the brachiocephalic vein or the azygos veins ;

oesophagitis

inflammation of the esophagus; often caused by gastroesophageal reflux ;

oesophagogastric junction

the junction between the esophagus and the stomach epithelium ;

oesophagoscope

an optical instrument for examining the inside of the esophagus ;

oesophagus

the passage between the pharynx and the stomach ;

oesterreich

a mountainous republic in central Europe; under the Habsburgs (1278-1918) Austria maintained control of the Holy Roman Empire and was a leader in European politics until the 19th century ;

oestradiol

the most powerful female hormone that occurs naturally; synthesized and used to treat estrogen deficiency and breast cancer ;

oestridae

warble flies ;

oestriol

a naturally occurring estrogenic hormone; a synthetic form is used to treat estrogen deficiency ;

oestrogen

a general term for female steroid sex hormones that are secreted by the ovary and responsible for typical female sexual characteristics ;

oestrone

a naturally occurring weak estrogenic hormone secreted by the mammalian ovary; synthesized (trade name Estronol) and used to treat estrogen deficiency ;

oestrus

type genus of the Oestridae: sheep botflies ; applies to nonhuman mammals: a state or period of heightened sexual arousal and activity ;

oestrus ovis

larvae are parasitic on sheep ;

oeuvre

the total output of a writer or artist (or a substantial part of it); "he studied the entire Wagnerian oeuvre"; "Picasso's work can be divided into periods" ;

off-axis reflector

a reflecting telescope with the mirror slightly tilted to throw the image to the side where it can be viewed ;

off-broadway

low-budget theaters located outside the Broadway area in Manhattan ;

off-day

a day when things go poorly; "I guess this is one of my off-days" ;

off-licence

a store that sells alcoholic beverages for consumption elsewhere ;

off-line equipment

electronic equipment not in direct communication (or under the control of) the central processing unit ;

off-line operation

a operation performed by off-line equipment not under the control of the central processing unit ;

off-roader

a bicycle with a sturdy frame and fat tires; originally designed for riding in mountainous country ;

off-season

the season when travel is least active and rates are lowest ;

off-speed pitch

a baseball thrown with little velocity when the batter is expecting a fastball ;

off-white

a shade of white the color of bleached bones ;