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Noun: sulphur bottom
Usage: Brit, Cdn (=sulfur bottom)
  1. Largest mammal ever known; bluish-grey migratory whalebone whale mostly of southern hemisphere
    - blue whale, sulfur bottom [N. Amer], Balaenoptera musculus

Derived forms: sulphur bottoms

Type of: baleen whale, whalebone whale

Part of: Balaenoptera, genus Balaenoptera

Nearest

sulphanilamide
sulphanilic acid
sulphate
sulphide
sulphite
sulphonamide
sulphone
sulphonic acid
sulphur
sulphur bacteria
sulphur bottom
sulphur butterfly
sulphur dioxide
sulphur hexafluoride
sulphur mine
sulphur mustard
sulphur oxide
sulphur paintbrush
sulphur-crested cockatoo
sulphureous
sulphurette