Source : Webster's Revised Unabridged Dictionary (1913)

Citrange \Cit"range\, n. [Citrus + orange.]
   A citrous fruit produced by a cross between the sweet orange
   and the trifoliate orange ({Citrus trifoliata}). It is more
   acid and has a more pronounced aroma than the orange; the
   tree is hardier. There are several varieties.

Source : WordNet®

citrange
     n 1: more aromatic and acidic than oranges [syn: {citrange tree},
           {Citroncirus webberi}]
     2: more aromatic and acid tasting than oranges; used in
        beverages and marmalade