Dictionary

All Word
oversimplification Noun an act of excessive simplification
oversimplification Noun a simplification that goes too far (to the point of misrepresentation)
ordeal Noun a primitive method of determining a person's guilt or innocence by subjecting the accused person to dangerous or painful tests believed to be under divine control
ordeal Noun a severe or trying experience
outlet Noun activity that frees or expresses creative energy or emotion
outlet Noun an opening that permits escape or release
outlet Noun a place of business for retailing goods
outlet Noun receptacle providing a place in a wiring system where current can be taken to run electrical devices
offspring Noun any immature animal
offspring Noun something that comes into existence as a result
offspring Noun the immediate descendants of a person
orphan Noun a young animal without a mother
orphan Noun the first line of a paragraph that is set as the last line of a page or column
orphan Noun a child who has lost both parents
orphan Noun someone or something who lacks support or care or supervision
orphan Verb deprive of parents
orthomyxovirus Noun a group of viruses including those causing influenza
obligate anaerobe Noun an organism that cannot grow in the presence of oxygen
onion yellow-dwarf virus Noun the virus that produces stunting and yellowing of the leaves of onion plants
order oedogoniales Noun simple or branched filamentous freshwater green algae
ovipositor Noun egg-laying tubular structure at the end of the abdomen in many female insects and some fishes
ostracoderm Noun extinct fish-like jawless vertebrate having a heavily armored body
osteostracan Noun extinct jawless fish of the Devonian with armored head
oceanic whitetip shark Noun large deep-water shark with white-tipped dorsal fin
ortolan Noun brownish Old World bunting often eaten as a delicacy
ortolan bunting Noun brownish Old World bunting often eaten as a delicacy
oscine bird Noun passerine bird having specialized vocal apparatus
ostrich Noun fast-running African flightless bird with two-toed feet
ostrich Noun a person who refuses to face reality or recognize the truth (a reference to the popular notion that the ostrich hides from danger by burying its head in the sand)
ouzel Noun common black European thrush
ousel Noun common black European thrush
ovenbird Noun small brownish South American birds that build oven-shaped clay nests
ovenbird Noun American warbler
oriole Noun American songbird
oriole Noun mostly tropical songbird
orchard oriole Noun the male is chestnut-and-black
olm Noun European aquatic salamander with permanent external gills that lives in caves
olympic salamander Noun small large-eyed semiaquatic salamander of the United States Northwest
owl Noun nocturnal bird of prey with hawk-like beak and claws and large head with front-facing eyes
owlet Noun young owl
osprey Noun large harmless hawk found worldwide that feeds on fish and builds a bulky nest often occupied for years
obstetrical toad Noun European toad whose male carries the fertilized eggs wrapped around its hind legs until they hatch
olive ridley Noun olive-colored sea turtle of tropical Pacific and Indian and the southern Atlantic oceans
ornithischian Noun herbivorous dinosaur with a pelvis like that of a bird
ornithischian dinosaur Noun herbivorous dinosaur with a pelvis like that of a bird
ornithopod Noun bipedal herbivorous dinosaur
ornithopod dinosaur Noun bipedal herbivorous dinosaur
ornithomimid Noun lightly built medium-sized dinosaur having extremely long limbs and necks with small heads and big brains and large eyes
oviraptorid Noun advanced carnivorous theropod
ophidian Noun limbless scaly elongate reptile