carinate bird
- noun
- Specialized
- Penguins are an example of a carinate bird, as they possess a distinct keel on their breastbone.
Examples
-
Many carinate birds are known for their exceptional flying abilities.
-
The presence of a keel distinguishes a carinate bird from a ratite bird.
-
Unlike ostriches, every carinate bird is adapted for flight due to its keeled sternum.
-
The carinate bird soared high above the valley.
-
Many species of carinate birds, such as eagles and hawks, are known for their agile flight.
-
A carinate bird like the albatross has strong flight muscles that allow it to soar over long distances.
-
To be classified as a carinate bird, a species must have a keeled breastbone for efficient muscle attachment.
Synonyms
A bird with a breastbone ridge that supports flight muscles
Surface Forms
Morphology
The phrase is a straightforward adjective + noun composition: 'carinate' (= having a keeled sternum) + 'bird' yields 'a bird with a keeled breastbone.' Although 'carinate' is technical, if a learner knows the constituent meanings the overall sense is directly derivable and follows a common cross-linguistic property-description pattern.
Etymology
Carinate bird comes from the strong keel on the breastbone, a ridge on the chest that holds the big muscles used for flying. So a carinate bird is one with this chest ridge and is made for 'flight' because the keel gives the muscles a place to pull so the bird can fly.