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

palmerworm \palm"erworm`\, n. zool.
   a any hairy caterpillar which appears in great numbers,
       devouring herbage, and wandering about like a palmer. the
       name is applied also to other voracious insects. --joel.
       i. 4.
   b in america, the larva of any one of several moths, which
       destroys the foliage of fruit and forest trees, esp. the
       larva of ypsolophus pometellus, which sometimes appears
       in vast numbers.
       1913 webster
see also:
ypsolophus pometellus 

[2] : Easton's 1897 Bible Dictionary

palmer-worm
   heb. gazam. the english word may denote either a caterpillar
   as rendered by the lxx., which wanders like a palmer or
   pilgrim, or which travels like pilgrims in bands joel 1:4;
   2:25, the wingless locusts, or the migratory locust in its
   larva state.
   

Palmer-Worm >> P Words
Palmer-Worm, definition of term: Palmer-Worm
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