Glossary B

Deutsch: Blutgruppe / Español: Grupo sanguíneo / Português: Tipo sanguíneo / Français: Groupe sanguin / Italiano: Gruppo sanguigno

Blood type refers to the classification of blood based on the presence or absence of specific antigens and antibodies. In the context of psychology, the concept of blood type often intersects with cultural beliefs and pseudoscientific theories regarding personality traits and behaviour. Although scientifically unsupported, these beliefs can influence social interactions and self-perception.

Blood-brain barrier refers to the system that "filters” the blood before it can enter the brain; mechanism that keeps many chemicals out of the brain. Affords protection from potentially harmful substances circulating in the body through the bloodstream. It bars certain drugs totally from the brain, and other substances require an active transport system across the Blood–brain barrier.

Blood-injection-injury phobia refers to a subtype of specific phobia characterized by the fear of seeing blood, looking at an injury, receiving an injection or any other invasive medical procedure. Specific phobia was formerly known as Simple phobia.

Blood-injection-injury type phobias refer to extreme fears of seeing blood or an injury or of receiving an injection or another invasive medical procedure, which cause a drop in heart rate and blood pressure and fainting

blood–injury–injection phobia refers to unreasonable fear and avoidance of exposure to blood, injury, or the possibility of an injection. Victims experience fainting and a drop in blood pressure.
Blowout refers to a depression caused by erosive wind

see also:
"Blowout" is in the UNSPSC Code "20121501"
  Blowout preventers

Bluebeard is defined as a man who marries and kills one wife after another. Bluebeard is a term after the nickname of the main character Raoul in a fairy tale by Charles Perrault (1628-1703). In the story, Bluebeard's wife finds the bodies of his previous wives in a room she was forbidden to enter. Yes, he did have a blue beard.