Definitions

1. noun

A type of insect larva that lives in water and is often found in streams and rivers.

“The caddis larvae were seen crawling on the rocks in the river.”

2. noun

A type of insect net or fly used in fly fishing.

“He used a caddis fly to catch a large trout in the lake.”

3. noun

A type of case or covering, especially for a camera or other electronic device.

“He attached a caddis to his camera to protect it from the rain.”