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Definition of dartfish
dartfish
/ˈdɑːrt.fɪʃ/
dart · fish
Plural:dartfish
dartfish Lexical Profile
CEFR
C1
Grade
10
Tier
3
Usage
Rare
• noun
1
Any of various small, slender, brightly colored marine fishes of the family Ptereleotridae, native to tropical Indo-Pacific coral reefs and noted for rapidly retreating into sandy burrows or rock crevices when alarmed.
Example
"The vivid purple fire dartfish is a popular addition to many marine reef aquariums due to its striking coloration and peaceful temperament."
Synonyms
View all synonyms for dartfishWord Origin & Etymology
A compound of 'dart' and 'fish', named for their characteristic behavior of swimming with quick, sudden movements and rapidly darting into burrows or crevices when threatened.
Usage Trend
Historical frequency of usage in published text.
180019102020
Data source: Google Books Ngram Viewer
Cite this Entry
Wordmom. (2026). Definition of Dartfish. In Wordmom Dictionary. Retrieved Oct 14, 2026, from https://wordmom.com/dictionary/dartfish