swordtail
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English
[edit]![](http://upload.wikimedia.org/wikipedia/commons/thumb/d/da/SwordtailFish.jpg/220px-SwordtailFish.jpg)
![](http://upload.wikimedia.org/wikipedia/commons/thumb/1/1f/Close_wing_mud_puddle_of_Graphium_nomius_%28Esper%2C_1799%29_-_Spot_Swordtail.jpg/220px-Close_wing_mud_puddle_of_Graphium_nomius_%28Esper%2C_1799%29_-_Spot_Swordtail.jpg)
Etymology
[edit]Noun
[edit]swordtail (plural swordtails)
- One of many species of freshwater fish, in genus Xiphophorus, others of which are called platyfish.
- 1998 August 21, Gretchen Vogel, “EVOLUTIONARY BIOLOGY:Doubled Genes May Explain Fish Diversity”, in Science[1], volume 281, number 5380, , pages 1119–1121:
- But ongoing efforts to sequence genes from other fishes, including salmon and swordtail, will also help to test the theory, Postlethwait says.
- Any of various papilionid butterflies that have a long sword-like projection from the tornal section of each hindwing.
Hyponyms
[edit]Translations
[edit]freshwater fish
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