Ondatra zibethica, n.
beaver-like aquatic rodent of North America with dark glossy brown fur
<noun.animal>
<noun.animal>
| Ondatra zibethica |
|
| muskrat |
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| musquash |
|
Onega, n.
lake in northwestern Russia near the border with Finland; second largest lake in Europe
<noun.object>
<noun.object>
| Lake Onega |
|
| Onega |
|
Oneida, n.
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Oniscidae, n.
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Oniscus, n.
type genus of the Oniscidae; woodlice that cannot roll into a ball
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<noun.animal>
| Oniscus |
|
| genus Oniscus |
|
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Ono, n.
United States musician (born in Japan) who married John Lennon and collaborated with him on recordings (born in 1933)
<noun.person>
<noun.person>
| Ono |
|
| Yoko Ono |
|
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Onobrychis, n.
genus of Old World herbs having pinnate leaves and pink or whites racemose flowers followed by flat unjointed pods
<noun.plant>
<noun.plant>
| Onobrychis |
|
| genus Onobrychis |
|
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Onobrychis viciaefolia, n.
Eurasian perennial herb having pale pink flowers and curved pods; naturalized in Britain and North America grasslands on calcareous soils; important forage crop and source of honey in Britain
<noun.plant>
<noun.plant>
| Onobrychis viciaefolia |
|
| Onobrychis viciifolia |
|
| esparcet |
|
| holy clover |
|
| sainfoin |
|
| sanfoin |
|
Onobrychis viciifolia, n.
Eurasian perennial herb having pale pink flowers and curved pods; naturalized in Britain and North America grasslands on calcareous soils; important forage crop and source of honey in Britain
<noun.plant>
<noun.plant>
| Onobrychis viciaefolia |
|
| Onobrychis viciifolia |
|
| esparcet |
|
| holy clover |
|
| sainfoin |
|
| sanfoin |
|
Onoclea, n.
one species: sensitive fern; in some classifications included in Polypodiaceae
<noun.plant>
<noun.plant>
| Onoclea |
|
| genus Onoclea |
|
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Onoclea sensibilis, n.
beautiful spreading fern of eastern North America and eastern Asia naturalized in western Europe; pinnately divided fronds show a slight tendency to fold when touched; pinnules enclose groups of sori in beadlike lobes
<noun.plant>
<noun.plant>
| Onoclea sensibilis |
|
| bead fern |
|
| sensitive fern |
|
Onoclea struthiopteris, n.
tall fern of northern temperate regions having graceful arched fronds and sporophylls resembling ostrich plumes
<noun.plant>
<noun.plant>
| Matteuccia struthiopteris |
|
| Onoclea struthiopteris |
|
| Pteretis struthiopteris |
|
| fiddlehead |
|
| ostrich fern |
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| shuttlecock fern |
|
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Onondaga, n.
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a member of the Iroquoian people formerly living between Lake Champlain and the Saint Lawrence River
<noun.person>
<noun.person>
| Onondaga |
|
Ononis, n.
genus of European subshrubs or herbs having pink or purple or yellow solitary or clustered flowers: restharrow
<noun.plant>
<noun.plant>
| Ononis |
|
| genus Ononis |
|
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Ononis repens, n.
European woody plant having pink flowers and unifoliate leaves and long tough roots; spreads by underground runners
<noun.plant>
<noun.plant>
| Ononis repens |
|
| rest-harrow |
|
| restharrow |
|
Ononis spinosa, n.
Eurasian plant having loose racemes of pink or purple flowers and spiny stems and tough roots
<noun.plant>
<noun.plant>
| Ononis spinosa |
|
| rest-harrow |
|
| restharrow |
|
Onopordon, n.
a genus of Eurasian herbs of the family Compositae with prickly foliage and large purplish flowers
<noun.plant>
<noun.plant>
| Onopordon |
|
| Onopordum |
|
| genus Onopordon |
|
| genus Onopordum |
|
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Onopordon acanthium, n.
biennial Eurasian white hairy thistle having pale purple flowers; naturalized in North America
<noun.plant>
<noun.plant>
| Onopordon acanthium |
|
| Onopordum acanthium |
|
| Scotch thistle |
|
| cotton thistle |
|
| woolly thistle |
|
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Onopordum, n.
a genus of Eurasian herbs of the family Compositae with prickly foliage and large purplish flowers
<noun.plant>
<noun.plant>
| Onopordon |
|
| Onopordum |
|
| genus Onopordon |
|
| genus Onopordum |
|
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Onopordum acanthium, n.
biennial Eurasian white hairy thistle having pale purple flowers; naturalized in North America
<noun.plant>
<noun.plant>
| Onopordon acanthium |
|
| Onopordum acanthium |
|
| Scotch thistle |
|
| cotton thistle |
|
| woolly thistle |
|
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Onosmodium, n.
a genus of North American perennial herbs of the family Boraginaceae
<noun.plant>
<noun.plant>
| Onosmodium |
|
| genus Onosmodium |
|
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Onsager, n.
United States chemist (born in Norway) noted for his work in thermodynamics (1903-1976)
<noun.person>
<noun.person>
| Lars Onsager |
|
| Onsager |
|
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Ontario, n.
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Onychium, n.
small terrestrial ferns of Old World tropics and subtropics: clawed ferns; sometimes placed in family Cryptogrammataceae
<noun.plant>
<noun.plant>
| Onychium |
|
| genus Onychium |
|
Onychogalea, n.
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Onychomys, n.
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Onychophora, n.
enigmatic small elongated wormlike terrestrial invertebrates of damp dark habitats in warm regions; distinct from the phylum Annelida; resemble slugs with legs and are sometimes described as the missing link between arthropods and annelids
<noun.animal>
<noun.animal>
| Onychophora |
|
| class Onychophora |
|
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Oom Paul Kruger, n.
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Oomycetes, n.
nonphotosynthetic fungi that resemble algae and that reproduce by forming oospores; sometimes classified as protoctists
<noun.plant>
<noun.plant>
| Oomycetes |
|
| class Oomycetes |
|
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Oort, n.
Dutch astronomer who proved that the galaxy is rotating and proposed the existence of the Oort cloud (1900-1992)
<noun.person>
<noun.person>
| Jan Hendrix Oort |
|
| Oort |
|
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