Source : Webster's Revised Unabridged Dictionary (1913)

Lone-Star State \Lone-Star State\
   Texas; -- a nickname alluding to the single star on its coat
   of arms, being the device used on its flag and seal when it
   was a republic.

Source : WordNet®

Lone-Star State
     n : the second largest state; located in southwestern United
         States on the Gulf of Mexico [syn: {Texas}, {TX}]