The Collaborative International Dictionary of English v.0.48:

Stringy \String"y\, a.
   1. Consisting of strings, or small threads; fibrous;
      filamentous; as, a stringy root.
      [1913 Webster]

   2. Capable of being drawn into a string, as a glutinous
      substance; ropy; viscid; gluely.
      [1913 Webster]

   Stringy bark (Bot.), a name given in Australia to several
      trees of the genus Eucalyptus (as Eucalyptus
      amygdalina, Eucalyptus obliqua, Eucalyptus
      capitellata, Eucalyptus macrorhyncha, Eucalyptus
      piperita, Eucalyptus pilularis, & Eucalyptus
      tetradonta), which have a fibrous bark used by the
      aborigines for making cordage and cloth.
      [1913 Webster]

WordNet (r) 3.0 (2006):

stringy
    adj 1: lean and sinewy [syn: stringy, wiry]
    2: (of meat) full of sinews; especially impossible to chew [syn:
       fibrous, sinewy, stringy, unchewable]
    3: forming viscous or glutinous threads [syn: ropy, ropey,
       stringy, thready]
    4: consisting of or containing string or strings