ratite


ratite

adjective

  1. having a flat, unkeeled sternum, as an ostrich, cassowary, emu, or moa.

noun

  1. a bird having a ratite breastbone.

adjective

  1. (of flightless birds) having a breastbone that lacks a keel for the attachment of flight muscles
  2. of or denoting the flightless birds, formerly classified as a group (the Ratitae), that have a flat breastbone, feathers lacking vanes, and reduced wings

noun

  1. a bird, such as an ostrich, kiwi, or rhea, that belongs to this group; a flightless bird

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