A wiperless windshield is a windshield that uses a mechanism other than wipers to remove snow and rain from the windshield. The concept car Acura TL features a wiperless windshield using a series of jet nozzles in the cowl to blow pressurized air onto the windshield.
Half sibling A half sibling (half brother or half sister) is a sibling with one shared biological or adoptive parent. A half sibling that shares the same mother (but different fathers) is known as a uterine sibling, whereas one that shares the same father is known as an agnate sibling.
A half sister is your biological sister but she has a different parent. Like if you have the same mom but different dads or if you have the same dad but different moms. A step sister is your step mom or step dad's daughter but she's not related to you. She is only related to you by law.