from the GNU version of the Collaborative International Dictionary of English
- Glass threads or fibers formed by the wind from bits blown from frothy lava or from the tips of lava jets or from bits of liquid lava thrown into the air. It often collects in thick masses resembling tow.
from The Century Dictionary and Cyclopedia
- n. The name given in the Hawaiian Islands to lava which, while fused, has been blown by the wind into long delicate fibers or threads.
Sorry, no etymologies found.