I was under the impression that one used an article, e.g. un homme aux yeux bleus
(or un homme au parapluie
, for that matter). But I see that it's not always the case: as a somewhat random example, my dictionary defines a "satyre" as "une divinité de la terre, être à corps humain, à cornes et à pieds de bouc." As another example, CNRTL includes: "Cet enfant d'une extrême beauté, aux yeux bleu vif, aux cheveux blonds bouclés, à teint délicat..."
Is there a rule for when to include the definite article?
Edit: looks like this question is along the same lines.
aux yeux
,aux cheveux
, and yetà teint
, even thought I've also seenau teint
.yeux
andcheveux
, but not forteint
? Likewise, why is there no article forcorps
,cornes
, andpieds
?