"Feminicide distinguishes violent crime against women from crimes in general," Eleonora Menicucci, minister for women's affairs said yesterday.
"It is for the good of Brazil in that it is favorable to women and it tackles the violence that can affect any woman. We are giving them an instrument of protection," she said ahead of the bill's approval.
The new law covers cases of women killed for her gender following domestic violence or gender-based violent discrimination.
If the victim is pregnant, killed in front of children or other family members, or if the victim is aged less than 14 or more than 60 the sentence is increased by a third.
President Dilma Rousseff, Brazil's first female leader, still has to ratify the bill, which tightens 2006 legislation beefing up punishments for domestic violence.
The original law was named after the case of Maria da Penha, a biochemist who fought for years to have her husband convicted for twice trying to murder her and who ultimately left her a paraplegic.