Blood

Blood is liquified substance in&#160;some organisms, like humans, that carries oxygen throughout the body.

Blood in the Wizarding World

 * The blood of a unicorn&#160;will keep someone&#160;alive, even if they are&#160;"an inch from&#160;death".
 * Albus Dumbledore&#160;is known to have discovered the&#160;twelve uses of&#160;dragon blood.
 * Some creatures, like ghosts&#160;and Inferi, have no blood, because they're dead.
 * Some wizarding&#160;terms and nicknames&#160;use the word blood. They include:


 * 1) Half-blood
 * 2) Pureblood
 * 3) Mudblood
 * 4) Half-Blood Prince
 * 5) Bloody Baron
 * 6) Blood Quill
 * 7) Blood traitor
 * 8) Blood purity/status
 * 9) Blood brothers
 * Severus Snape&#160;was known as the Half-Blood Prince and invented the spell Sectumsempra, which causes&#160;a living being&#160;to shed blood. This spell&#160;has only been used by two known wizards,&#160;including:
 * 1) Harry Potter&#160;, in 1997,&#160;&#160;on Draco Malfoy, causing&#160;the latter&#160;to nearly bleed to death and the former&#160;later tried to use it on both the Inferi (which are bloodless)&#160;and Snape (who&#160;blocked the curse).
 * 2) Snape, in 1997,&#160;on George Weasley. Though meaning to hit a Death Eater, Snape caused George's ear to fall away.
 * The Blood-Replenishing Potion&#160;replenishes blood lost during an injury.
 * Vampires&#160;are known to eat blood, some are known as blood brothers.
 * Eldred Worple&#160;wrote a book known as&#160;Blood Brothers: My Life Amongst the Vampires.
 * Honeydukes&#160;sells blood-flavoured lollipops, supposedly for vampires.
 * Dolores Umbridge&#160;owned a quill&#160;that scarred whatever one wrote into one's flesh.
 * Years ago, the Baron&#160;became known as the "Bloody Baron", in the afterlife,&#160;after he killed Helena Ravenclaw&#160;and became covered in her blood.
 * In his first year&#160;at Hogwarts School of Witchcraft and Wizardry, Harry caught Quirinus Quirrell&#160;illegally killing unicorns&#160;and drinking their blood for Lord Voldemort.
 * In 1995, the blood of Harry Potter helped in the Return of the Dark Lord.
 * In his&#160;fifth year, Harry was scarred&#160;by Umbridge's Blood Quill.
 * Voldemort's death, in 1998, was mostly because of Harry's blood in the Dark Lord's veins, making him unable to kill the young wizard.

Behind the Scenes

 * One of the chapters in Harry Potter and the Goblet of Fire is titled "Flesh, Blood and Bone".
 * The title of the&#160;sixth Harry Potter&#160;book, film, video game, and soundtrack&#160;is Harry Potter and the Half-Blood Prince.
 * Voldemort's eyes are described as being the color of blood in the books.
 * The British&#160;curse "bloody" is inspired by blood.

Appearances

 * Harry Potter and the Philosopher's Stone
 * Harry Potter and the Philosopher's Stone (film)
 * Harry Potter and the Chamber of Secrets
 * Harry Potter and the Chamber of Secrets (film)
 * Harry Potter and the Prisoner of Azkaban
 * Harry Potter and the Prisoner of Azkaban (film)
 * Harry Potter and the Goblet of Fire
 * Harry Potter and the Goblet of Fire (film)
 * Harry Potter and the Order of the Phoenix
 * Harry Potter and the Order of the Phoenix (film)
 * Harry Potter and the Half-Blood Prince
 * Harry Potter and the Half-Blood Prince (film)
 * Harry Potter and the Deathly Hallows