Noun ursus arctos has 1 sense
  1. brown bear, bruin, Ursus arctos - large ferocious bear of Eurasia
    --1 is a kind of bear
    --1 is a member of Ursus, genus Ursus
    --1 has particulars:
     Syrian bear, Ursus arctos syriacus; grizzly, grizzly bear, silvertip, silver-tip, Ursus horribilis, Ursus arctos horribilis; Alaskan brown bear, Kodiak bear, Kodiak, Ursus middendorffi, Ursus arctos middendorffi
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