/hel"euh ruy', -ree/ , n.
1. a brightly colored, playful topminnow that is a hybrid of Xiphophorus helleri and X. maculatus, bred for aquariums.
2. swordtail.
[ 1905-10; helleri (of Heller), a specific epithet, after Carl Heller, 20th cent. tropical fish collector ]