ocellus
1: an eye having a single lens [syn: {simple eye}, {stemma}] 2: an eyelike marking (as on the wings of some butterflies); usually a spot of color inside a ring of another color [syn: {eyespot}] [also:...
ocelot
1: nocturnal wildcat of Central America and South America having a dark-spotted buff-brown coat [syn: {panther cat}, {Felis pardalis}]
ocher
1: of a moderate orange-yellow color [syn: {ochre}] n 1: a moderate yellow-orange to orange color [syn: {ochre}] 2: any of various earths containing silica and alumina and ferric oxide; used as a pigm...
Ochna
1: type genus of Ochnaceae; evergreen trees and shrubs of Old World tropics [syn: {genus Ochna}]
ochna family
1: family of tropical evergreen trees and shrubs with thick shining parallel-veined leaves [syn: {Ochnaceae}, {family Ochnaceae}]
Ochna serrulata
1: shrub with narrow-elliptic glossy evergreen leaves and yellow flowers with leathery petaloid sepals [syn: {bird's-eye bush}]
Ochnaceae
1: family of tropical evergreen trees and shrubs with thick shining parallel-veined leaves [syn: {family Ochnaceae}, {ochna family}]
Ochoa
1: United States biochemist (born in Spain) who studied the biological synthesis of nucleic acids (born in 1905) [syn: {Severo Ochoa}]
Ochotona
1: type genus of the Ochotonidae [syn: {genus Ochotona}]
Ochotona collaris
1: similar to little chief hare and may be same species [syn: {collared pika}]
Ochotonidae
1: pikas and extinct forms [syn: {family Ochotonidae}]
ochre
1: of a moderate orange-yellow color [syn: {ocher}] n 1: any of various earths containing silica and alumina and ferric oxide; used as a pigment [syn: {ocher}] 2: a moderate yellow-orange to orange co...
Ochroma
1: 1 species: balsa [syn: {genus Ochroma}]
Ochroma lagopus
1: forest tree of lowland Central America having a strong very light wood; used for making floats and rafts and in crafts [syn: {balsa}]
ochronosis
1: an accumulation of dark pigment in cartilage and other connective tissue; usually a symptom of alkaptonuria or phenol poisoning
Ochs
1: United States newspaper publisher (1858-1935) [syn: {Adolph Simon Ochs}]
Ocimum
1: basil [syn: {genus Ocimum}]
Ocimum basilicum
1: annual or perennial of tropical Asia having spikes of small white flowers and aromatic leave; one of the most important culinary herbs; used in salads, casseroles, sauces and some liqueurs [syn: {c...
Ockham
1: English scholastic philosopher and assumed author of Occam's Razor (1285-1349) [syn: {Occam}, {William of Occam}, {William of Ockham}]
Ockham's Razor
1: the principle that entities should not be multiplied needlessly; the simplest of two competing theories is to be preferred [syn: {Occam's Razor}, {principle of parsimony}, {law of parsimony}]
oconee bells
1: plant of southeastern United States having solitary white funnel-shaped flowers flushed with pink and large glossy green leaves that turn bronze-red in fall [syn: {Shortia galacifolia}]
ocotillo
1: desert shrub of southwestern United States and Mexico having slender naked spiny branches that after the rainy season put forth foliage and clusters of red flowers [syn: {coachwhip}, {Jacob's staff...
Oct
1: the month following September and preceding November [syn: {October}]
octad
1: the cardinal number that is the sum of seven and one [syn: {eight}, {8}, {VIII}, {eighter}, {eighter from Decatur}, {ogdoad}, {octonary}, {octet}]
octadecanoic acid
1: a waxy saturated fatty acid; occurs widely as a glyceride in animal and vegetable fats [syn: {stearic acid}]
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octagonal
1: of or relating to or shaped like an octagon [syn: {octangular}]
octahedron
1: any polyhedron having eight plane faces [also: {octahedra} (pl)]
octal
1: of or pertaining to a number system having 8 as its base; "an octal digit"
octal notation
1: any mathematical notation that uses 8 different characters (usually the digits 0 to 7)
octal number system
1: a positional system of numeration that uses octal digits and a radix of 8 [syn: {octal numeration system}]
octal numeration system
1: a positional system of numeration that uses octal digits and a radix of 8 [syn: {octal number system}]
octameter
1: a verse line having eight metrical feet
octane
1: any isomeric saturated hydrocarbon found in petroleum and used as a fuel and solvent
octane number
1: a measure of the antiknock properties of gasoline [syn: {octane rating}]
octane rating
1: a measure of the antiknock properties of gasoline [syn: {octane number}]
octangular
1: of or relating to or shaped like an octagon [syn: {octagonal}]
Octans
1: the constellation that includes the southern celestial pole
octant
1: a measuring instrument for measuring angles to a celestial body; similar to a sextant but with 45 degree calibration
octave
1: a feast day and the seven days following it 2: a musical interval of eight tones [syn: {musical octave}] 3: a rhythmic group of eight lines of verse
Octavian
1: Roman statesman who established the Roman Empire and became emperor in 27 BC; defeated Mark Antony and Cleopatra in 31 BC at Actium (63 BC - AD 14) [syn: {Augustus}, {Gaius Octavianus}, {Gaius Jul...
octavo
1: the size of a book whose pages are made by folding a sheet of paper three times to form eight leaves [syn: {eightvo}, {8vo}]
octet
1: the cardinal number that is the sum of seven and one [syn: {eight}, {8}, {VIII}, {eighter}, {eighter from Decatur}, {octad}, {ogdoad}, {octonary}] 2: eight performers or singers who perform togethe...
octette
1: eight performers or singers who perform together [syn: {octet}] 2: a set of eight similar things considered as a unit [syn: {octet}] 3: eight people considered as a unit [syn: {octet}, {eightsome}]...
October
1: the month following September and preceding November [syn: {Oct}]
October 12
1: a legal holiday commemorating the discovery of America by Christopher Columbus [syn: {Columbus Day}, {Discovery Day}]
October 24
1: a day for celebrating the founding of the United Nations [syn: {United Nations Day}]
October Revolution
1: the coup d'etat by the Bolsheviks under Lenin in November 1917 that led to a period of civil war which ended in victory for the Bolsheviks in 1922 [syn: {Russian Revolution}]
Octoberfest
1: a strong lager made originally in Germany for the Oktoberfest celebration; sweet and copper-colored [syn: {Oktoberfest}]
octogenarian
1: being from 80 to 89 years old n : someone whose age is in the eighties
octonary
1: the cardinal number that is the sum of seven and one [syn: {eight}, {8}, {VIII}, {eighter}, {eighter from Decatur}, {octad}, {ogdoad}, {octet}]
octopod
1: eight-armed cephalopod lacking an internal shell
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