fast-growing

from WordNet (r) 3.0 (2006)
fast-growing
    adj 1: tending to spread quickly; "an aggressive tumor" [syn:
           {aggressive}, {fast-growing(a)}, {strong-growing}]
    
from The Collaborative International Dictionary of English v.0.48
fast-growing \fast-growing\ adj.
   tending to spread quickly; -- used mostly of plants.
    

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