[1] : The Collaborative International Dictionary of English v.0.48

galanga \galan"ga\, galangal \galan"gal\, n.oe. galingale,
   of. galingal, garingal, f. galanga cf. sp. galanga, prob.
   fr. ar. khalanj=an. 
   the pungent aromatic rhizome or tuber of certain east indian
   or chinese species of alpinia alpinia galanga and
   alpinia officinarum and of the kaempferia galanga, --
   all of the ginger family.
   1913 webster
see also:
alpinia alpinia galanga alpinia officinarum kaempferia galanga 

[2] : WordNet (r) 2.0

alpinia galanga
     n : southeastern asian perennial with aromatic roots syn: galangal
see also:
galangal 

Galanga >> G Words
Galanga, definition of term: Galanga
galanga_pag1.html

Alpinia >> A Words
Alpinia, definition of term: Alpinia
alpinia_pag1.html