a blue-white giant star in the constellation Orion, with apparent magnitude +1.63.
Origin: < ML, L bellātrīx martial, waging war, equiv. to bellā(re) to wage war, (v. deriv. of bellum war) + -trīx-trix; appar. by assoc. with bellātor a name for Orion (L: warrior), though precise connection with this star unexplained