Words starting with O

ooplastSynonym of oosphere.
oopsUsed to acknowledge a small mistake or accident.
oopsadaisySynonym of whoops-a-daisy.
oopsiesOops.
oopsortunityAn accident or mistake that shows itself to be an opportunity.
oopsySynonym of oops.
oopuhueglobefish
oorahThe official yell for the US Marines.
ooraricurare
oorhodeinA reddish-brown pigment found in eggshells.
OorjaA female given name from Sanskrit used in India.
OorlamAny member of a subtribe of the Nama people, originally formed from mixed-race descendants of indigenous Khoikhoi, Europeans and slaves from Madagascar, India, and Indonesia.
OortA surname from Dutch.
oosA district of Baden-Baden, Baden-Württemberg, Germany.
ooseFluff, particularly from a textile source such as cotton or wool.
ooserA wooden horned mask used for folkloric and magical purposes. Possibly also the unknown creature upon which the mask was based.
oosikThe baculum (penile bone) of a walrus, often sold as a souvenir to tourists in Alaska.
oosomeA mass of protoplasm at one end of an insect egg
oosorptionThe resorption of a developing egg typically as a response to a parasite
oospariteA kind of limestone consisting of ooids cemented together with sparite.
oospariticOf, pertaining to, or containing oosparite.
oospeciesAn ootaxon, equivalent to a species, used to classify fossilised dinosaur eggs
oospermThe ovum, after fusion with the spermatozoon in impregnation.
oosphereA large nonmotile egg cell, especially of an alga or fungus, formed in an oogonium and ready for fertilization.
oosporangeSynonym of oosporangium.
oosporangiumAn oogonium.
oosporeA fertilized female zygote, having thick chitinous walls, that develops from a fertilized oosphere in some algae and fungi
oosporeinA dibenzoquinone that is a toxic metabolite of the fungus Cochliobolus kusanoi
oosporicRelating to the oospore.
oosporiferousBearing oospores.
oosporogenesisThe sporogenesis of oospores
OostA river in Germany.
oostasisThe failure of (typically insect) eggs to form or to develop
oostaticRelating to, or causing oostasis
oostegiteOne of the plates which, in some crustaceans, enclose a cavity in which the eggs are hatched.
OosterbeekA village in Renkum municipality, Gelderland province, Netherlands.
oosterboschiteAn orthorhombic black mineral containing copper, palladium, and selenium.
OosterhoutA city and municipality of North Brabant, Netherlands.
OostkampA municipality in West Flanders, Belgium.
OoststellingwerfA municipality of Friesland, Netherlands.
OostzaanA municipality of North Holland, Netherlands.
ootanything
OotacamundSynonym of Udhagamandalam.
ootaxonAny taxonomic classification of egg fossils.
ootaxonomicRelating to ootaxonomy
ootaxonomyThe taxonomy of eggs
OotenA surname from Dutch.
OothaA locality in the Forbes council area and the Lachlan council area, central New South Wales, Australia.
oothecaAn egg case of any of the orthopteroid insects (such as cockroaches and mantids).
oothecalRelating to an ootheca.
ootidThe haploid cell, produced by meiotic division of a secondary oocyte, that is a nearly mature ovum.
ootidogenesisThe part of oogenesis leading to the formation of ootids
OotyNickname for Udhagamandalam: a city in Tamil Nadu, India.
ootypeThe part of the oviduct of certain trematodes in which the ova are completed by being furnished with yolk, and, by secretion from the Mehlis glands, with a shell.
OOVAn item in a television (especially news) broadcast consisting of pictures alone, to be played on screen while the presenter continues to talk out of vision and provide commentary.
oowopAn uzi submachine gun.
ooyahouch; oof
oozageSeepage or leakage via oozing.
oozeTanning liquor, an aqueous extract of vegetable matter (tanbark, sumac, etc.) in a tanning vat used to tan leather.
oozieIn Myanmar, an elephant trainer or mahout.
oozilyIn an oozy manner.
oozinessThe state or condition of being oozy.
oozingSomething that oozes; a seepage.
oozinglyIn an oozing manner.
oozleAn effect created by dropping clear water onto a painted section before it is dry, forming a burst of color.
OozlefinchThe mascot of the U.S. Army Air Defense Artillery branch, a mythical featherless, flightless bird that flies backwards to keep dust, trivia, and other inconsequentia out of his eyes.
oozooidA zooid that develops from an egg and reproduces by budding
oozyOf or pertaining to the quality of something that oozes.
opAn amateur radio operator.
opaGrandfather, grandpa.
opabiniidAny extinct arthropod in the family Opabiniidae.
opacarophiliaLove of the sunset; attraction (sometimes sexual) to sunsets.
opacateTo darken; to cloud.
opacatingMaking or becoming opaque.
opacifiableCapable of being made opaque.
opacificationThe action of making something opaque or cloudy.
opacifiera chemical agent added to a material, such as rocket propellant, to make it opaque
opacifyTo make opaque.
opacimeterAny instrument that measures opacity
opaciousOpaque.
opaciteA small, dark grain, of doubtful origin, in an igneous rock
opacityThe state or quality of being opaque, not allowing light to pass through.
opacousNot shining or illuminated; dark.
opacousnessOpacity.
opacularopaque
opahAny of various large, colourful, deep-bodied pelagic fish of the family Lamprididae.
opakapakaPristipomoides filamentosus, the crimson jobfish.
opalA mineral consisting, like quartz, of silica, but inferior to quartz in hardness and specific gravity, of the chemical formula SiO₂·nH₂O.
opaledopalescent; misty or milky in appearance
opalesceTo be opalescent; to produce or show a play of colors, like an opal.
opalescencethe state of being opalescent
opalescentExhibiting a milky iridescence like that of an opal.
opalescentlyIn an opalescent manner.
opalesqueSimilar to opal; having some of the qualities of opal.
opaleyeA fish, Girella nigricans, a species of sea chub found in the Eastern Pacific.
opalfishHemerocoetes monopterygius, a ray-finned fish, found only around New Zealand.
OpaliaSynonym of Opiconsivia
opalicHaving a structure similar to that of opal
opalineResembling opal in having a milky white iridescence.
opalinidAny heterokont in the family Opalinidae.
opalishResembling or characteristic of opal.
opaliteOpal; some variety of it; an artificial mineral resembling it.
opalizationThe process of making something opalescent, or of converting wood etc into opal.
opalizeTo convert into a form of opal or chalcedony, especially to convert wood into such a fossilized form.
opalizedConverted into a form of opal or chalcedony
OpalkaA surname.
opalotypeA photograph taken on opalescent glass.
opalsThe women's national basketball representative team of Australia.
OpaltonA mining settlement in Winton, Queensland, Australia.
opalwareA form of opaque toughened glass used for dinnerware.
opanakA kind of traditional leather shoe worn in Bulgaria, Bosnia and Herzegovina, Croatia, Macedonia and Serbia.
opankaA kind of sandal worn in Eastern Europe.
opaqueNeither reflecting nor emitting light.
opaquelyIn an opaque manner.
opaquenTo make or become opaque.
opaquenessSynonym of opacity.
opaquerA substance used to block out dark colours of staining, underlying dental work, etc.
oparaThe oldest son, who has inherited the rights and responsibilities of his father after his father has died.
OpataAn indigenous people of northern Sonora.
OpatijaA city in Croatia.
OpatrnyA surname from Czech.
OpavaA city in the Czech Republic.
opcodeA mnemonic used to refer to a microprocessor instruction in assembly language.
OpdahlA surname from Norwegian.
opdaliteA charnockitic form of granodiorite
opeAn exclamation of surprise; oops.
opegraphaAny lichen species of the genus Opegrapha.
opehbetel palm; areca palm
opeidoscopeAn instrument, consisting of a tube with one end open and the other end covered with a thin flexible membrane with a mirror attached to its centre, used for exhibiting upon a screen, by means of rays reflected from the mirror, the vibratory motions caused by sounds that enter the tube.
opeletA bright-coloured European actinian (Anemonia sulcata), or the similar Anemonia viridis
OpelikaA city, the county seat of Lee County, Alabama, United States.
OpelkaA surname from Czech.
OpelousasA city, the parish seat of St. Landry Parish, Louisiana, United States.
openAble to have something pass through or along it.
openabilityThe quality of being openable.
openableCapable of being opened.
openbandRight-handed or "Z shaped", with individual fibers pointing up and to the right when the thread, yarn, or rope is vertical.
openbillEither of two species of bird in the genus Anastomus of the stork family Ciconiidae, with a distinctive gap between the mandibles of the closed bill.
OpenBSDa Unix-like operating system that is derived from Berkeley Software Distribution (BSD)
opencastOf or pertaining to strip mining, in which material is removed from a surface that has been exposed
OpenCourseWareA body of academic materials released online, free of charge and open for use worldwide.
OpenDocumentA standard file format, based on XML, for office applications.
openedHaving undergone opening.
openerA person who opens something.
OpenGLOpen Graphics Library: a standard, cross-platform specification for generating 2D and 3D computer graphics.
openhandTo hit with an open hand.
openhandedDone with an open hand.
openingPertaining to the start or beginning of a series of events.
openlyIn an open manner; visibly.
openmouthedlyWith the mouth open, especially in astonishment.

Words starting with O

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