Search Dictionary
Definition of caddisfly
caddisfly
/ˈkæd.ɪs.flaɪ/
cad · dis · fly
Plural:caddisflies
caddisfly Lexical Profile
CEFR
C1
Grade
9
Tier
3
Usage
Rare
caddisfly Game Scores & Validity
Scrabble US
Scrabble UK
WWF
Wordle Guess
• noun
1
Any of various moth-like insects of the order Trichoptera, typically found near freshwater habitats, whose aquatic larvae construct protective cases from sand, debris, and silk.
Example
"Trout are often seen feeding on adult caddisflies as they emerge from the river surface during a hatch."
2
An artificial fishing lure designed by anglers to imitate the natural insect in its various life stages, commonly used in fly fishing.
Example
"The angler carefully tied a specialized caddisfly to the end of his line before casting into the riffle."
Synonyms
View all synonyms for caddisflyWord Origin & Etymology
Mid-17th century: from 'caddis' (a historic term for a type of worsted yarn or ribbon, referring to the tubular cases built by the aquatic larvae) + 'fly'.
Cite this Entry
Wordmom. (2026). Definition of Caddisfly. In Wordmom Dictionary. Retrieved Oct 14, 2026, from https://wordmom.com/dictionary/caddisfly