Proper noun
Bellatrix
(astronomy) A blue eruptive variable star, the third brightest star in the constellation Orion; Gamma (γ) Orionis.
She looks like a warrior. I mean, Bellatrix does mean warrior. And she's also a bit of a fatale. She's the right hand of Voldemort, and the only woman death eater. Helena Bonham Carter
Because of Lucius' arrest and fall from Voldemort's favour, Narcissa Malfoy and Bellatrix Lestrange visit Snape at his home to discuss a dangerous task that Voldemort has assigned Draco. Source: Internet
But played with a brilliant manic intensity by Helena Bonham Carter (who’s clearly having a blast), Bellatrix Lestrange could be the most menacing of the lot. Source: Internet
Even under torture, Hermione is able to use her quick thinking to lie to Bellatrix that the sword is a fake. Source: Internet
However, the three of them are unable to defeat Bellatrix and stop fighting her once Molly Weasley orders them to disengage. Source: Internet
Rowling (2007) p. 502/625 In the final battle in the Great Hall, Hermione fights Bellatrix with the help of Ginny Weasley and Luna Lovegood. Source: Internet