Examples from the Web for crawler
The bite of a crawler was poisonous, instantly paralyzing even to a unicorn, though not instantly killing them.Space Prison|Tom Godwin
Now, lets watch out, so that no crawler gets in close enough to start cutting the wire corral open.The Broncho Rider Boys on the Wyoming Trail|Frank Fowler
The party in the boat sent their small craft flying toward the spot where the crawler had sunk.Star Born|Andre Norton
Hasty movements answered that as the Medic's limp body was thrust under the cover offered by the upper framework of the crawler.
The treads of the crawler bit on the steps leading up to the impressive entrance of the tower.