from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The larva of a common tiger moth (Estigmene acrea) that feeds destructively on various grasses.
from the GNU version of the Collaborative International Dictionary of English
- adj. an American bombycid moth (Spilosoma acræa which is very destructive to the salt-marsh grasses and to other crops. Called also woolly bear. See Illust. under Moth, Pupa, and Woolly bear, under Woolly.
Sorry, no etymologies found.