tangelo

from WordNet (r) 3.0 (2006)

tangelo
    n 1: hybrid between grapefruit and mandarin orange; cultivated
         especially in Florida [syn: {tangelo}, {tangelo tree},
         {ugli fruit}, {Citrus tangelo}]
    2: large sweet juicy hybrid between tangerine and grapefruit
       having a thick wrinkled skin [syn: {tangelo}, {ugli}, {ugli
       fruit}]

from The Collaborative International Dictionary of English v.0.48

Tangelo \Tan"ge*lo\ (t[a^]n"j[-e]*l[=o]), n. [Tangerine +
   pomelo.]
   A hybrid between the tangerine orange and the grapefruit, or
   pomelo; also, the fruit.
   [Webster 1913 Suppl.]