ligress

plural ligresses

1. A female liger.

   Colette has rescued cougars, bobcats, jaguars, panthers, tigers, lions--and even a ligress --a cross between a lion and a tiger.

   1994 December 6, Tim May, “Waystation Trying to Save Tigers in Ireland”, in Los Angeles Times

   2 more examples

   Called Shasta because "she hasta" have this and "she hasta" have that, the bossy liger — she was a ligress, to be more precise — was one of the zoo's most beloved and famous residents before she died in 1972 at the ripe age of twenty-four.

   2008, Brandon Griggs, Utah Curiosities: Quirky Characters, Roadside Oddities & Other Offbeat Stuff, Insiders' Guide, published 2008, →ISBN, page 128

   There are a number of cases of ligers and ligresses in the world but experts say it is impossible for males to conceive and exceptionally rare for females to give birth.

   2012 September 11, “The rarest big cat in the world needs a normal moggy as her foster mum”, in The Siberian Times