#genus_Physeter__Physeter  type genus of the Physeteridae
  supertype:  mammal_genus  a genus of mammals
  member of:  family_Physeteridae
  member:  sperm_whale__spermwhale__cachalot__black_whale__blackwhale__Physeter_catodon  large whale with a large cavity in the head containing spermaceti and oil; also a source of ambergris

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