Resembling an eagle, especially used to describe a curved nose like an eagle's beak; also means relating to eagles.
From Latin 'aquilinus' (of or resembling an eagle), derived from 'aquila'; the term entered English in the 16th century and became popular in both physical description and poetic language.
When people call someone's nose 'aquiline,' they're literally saying it curves like an eagle's beak! It became a fashionable way to describe a strong profile, and you'll see it constantly in historical novels and character descriptions.
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