Bagshot, Bathilda: Author of A History of Magic.
Bane: Name of a centaur in the Forbidden Forest.
Basilisk: Snake-like creature whose eyes will turn you to stone.
Beater: Quidditch player who tries to knock the Bludgers towards the opposing team.
Beauxbatons Academy of Magic: School of witchcraft and wizardry somewhere in Europe.
Bell, Katie: Chaser on the Gryffindor Quidditch team.
Bertie Botts' Every Flavour Beans: Wizarding jellybeans. Come in every flavour, including spinach, liver, tripe, sprout, curry, grass and even bogey and vomit flavours.
Bezoar: Stone taken from the stomach of a goat. A bezoar will counteract the majority of poisons.
Binns, Professor: History of Magic teacher at Hogwarts. The only ghost teacher at the school. He fell asleep in front of the fire and forgot to wake up.
Black Forest: Place in Germany where Professor Quirrel was rumoured to have encountered vampires.
Blast-Ended Skrewt: Cross between a manticore and a fire crab. They have no recognisable head or eyes, but they explode intermittently at one end. Males have a sting like a scorpion and females have suckers on their bellies. Adult Skrewts have thick grey armour and may grow to be ten feet long.
Black, Sirius: Escaped prisoner from Azkaban. Also Harry's Godfather
Blood-flavoured Lollipops: Lollipops for vampires.
Bloody Baron, the: Resident ghost of Slytherin Tower.
Bludgers: Black balls that try to knock players off their brooms in Quidditch.
Boggart: Shape-shifter that takes on the likeness of your worst fear.
Bouncing Bulb: Plant used in Herbology.
Bozo: Photographer for the Daily Prophet.
Borgin and Burkes: Dark Arts shop in Knockturn Alley.
Broomstick Servicing Kit: Thirteenth birthday present for Harry from Hermione Granger. A black leather case containing a jar of Fleetwood's High-Finish Handle Polish, Tail-Twig Clippers, brass compass and a Handbook of Do-it-Yourself Broomcare.
Brown, Lavender: Hogwarts pupil in the same year as Harry. She is in Gryffindor house and her best friend is Parvati Patil.
Bryce, Frank: Muggle killed by Voldemort. Frank worked as a gardener at Riddle House in the village of Little Hangleton.
Buckbeak: Name of a Hippogriff: a large flying creature that is half bird and half horse.
Bulstrode, Millicent: Hermione Granger's duelling partner in the second year duelling club. Millicent is in Slytherin house, in Harry's year.
Bubble-Head Charm: Magic that enables you to breathe underwater.
Bubotuber: Plant that resembles a black slug with swellings that contain a yellowish green liquid. Bubotuber pus is used to cure acne, but undiluted it causes sores and boils.
Burrow, The: Home of the Weasley family.
Butterbeer: Frothy, buttery drink served in Hogsmeade.
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