half-track (vehicle with both wheels and caterpillar treads)
履带车
lu:3 dài chē
a caterpillar track vehicle
链轨
liàn guǐ
caterpillar track (propulsion system used on bulldozers etc)
冬虫夏草
dōng chóng - xià cǎo
caterpillar fungus (Ophiocordyceps sinensis) (The fungus grows within the body of a caterpillar, culminating in the emergence of a stalked fruiting body from the caterpillar's head, and is a much-prized and expensive ingredient used as a tonic in traditional Chinese medicine.)
螟蛉
míng líng
green rice caterpillar or similar insect larva / adopted son (Etymology: Wasps of a particular species take caterpillars to their nest as food for their offspring, but it was mistakenly believed that the wasps were raising the caterpillars as their own young.)