Killifish

/ˈkɪlɪˌfɪʃ/

Meaning & Definition

noun
Any of various small, usually brightly colored fish of the family Cyprinodontidae, often found in freshwater environments.
The aquarium was filled with a vibrant collection of killifish, showcasing their bright colors.
A type of fish that can live in temporary water bodies and are often used as bait in fishing.
We used killifish as bait to catch larger species during our fishing trip.
Killifish are popular among aquarium enthusiasts due to their hardiness and beauty.
Many fish keepers prefer killifish because they are easy to care for and add color to their tanks.
Species of killifish are known for their unique breeding habits, often laying eggs that can withstand drying out.
The killifish in the nature reserve demonstrate fascinating reproductive strategies in response to seasonal droughts.

Etymology

From the Dutch 'kill,' meaning 'creek' or 'channel,' referring to their habitat.

Common Phrases and Expressions

killifish tank
An aquarium specifically designed to keep killifishes.
killifish breeding
The process of breeding killifishes for aquarium purposes.
killifish collection
The hobby of collecting different species of killifishes.

Related Words

Cyprinodontidae
The family of fish that includes killifishes.
freshwater
Water that has low concentrations of dissolved salts, typical of rivers and lakes.

Slang Meanings

Small fry
The local fishermen just catch small fry, like killifish, for bait.
Swamp fish
They call it swamp fish around here because they thrive in shallow waters.