swordtail
Definition
Noun: 1. A small, colorful freshwater fish (Xiphophorus hellerii) native to Central America, characterized by the male having a long, pointed lower tail fin that resembles a sword. It is a popular species for home aquariums.
Usage
- The swordtail is a livebearing fish, meaning it gives birth to free-swimming young instead of laying eggs.
- A male swordtail can be easily identified by the elongated extension on its tail fin.
- Many aquarium hobbyists keep swordtails because they are hardy and come in many color varieties.
Advanced Usage
- In scientific contexts, the swordtail is often studied for its genetics and mating behaviors.
- The term can be used attributively (like an adjective) in compound nouns, such as swordtail population or swordtail breeding.
Variants and Related Words
- Platy (Noun): A closely related fish () from the same genus, often kept with swordtails in aquariums. Platies are similar but lack the distinct "sword" tail extension.
- Livebearer (Noun): A general term for fish that give birth to live young, a category which includes swordtails, platies, guppies, and mollies.
Synonyms
- Green swordtail (Noun): Another common name for the same species, referring to its wild-type coloration.
- Xiphophorus hellerii (Noun): The scientific (Latin) name for the species.
Related Phrases/Idioms
- None directly associated. The word "swordtail" is a specific zoological/common name and is not typically used in idiomatic English expressions.
Noun
-
freshwater fish of Central America having a long swordlike tail; popular aquarium fish
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