Learner's definition of BLOOD
1 : the red liquid that flows through the bodies of people and animals
The accident victim has already lost a lot of blood.
the blood in your veins
She donates/gives blood twice a year. [=twice a year she has blood taken out of her body so that it can be put into the body of a person who needs it]
2 — used to say that a person's ancestors were of a particular kind 3 : members of a team, company, or organization — usually used in the phrases new blood or young blood
blood is thicker than water
◊ The saying blood is thicker than water means that a person's family is more important than a person's other relationships or needs.
blood is up
◊ In British English, when you say that someone's blood is up, you mean that someone is angry and wants to fight or argue.
blood on your hands
◊ If someone's blood is on your hands, you are responsible for that person's death.
: by a relationship that connects two people through their natural parents, grandparents, etc.
1 : to take blood from a person's body for medical reasons 2 : to cause blood to flow from a person's body — sometimes used figuratively
in cold blood
: in a deliberate way : following a plan
in your blood
◊ If something (such as an ability or activity) is in your blood, it is part of your nature and is often shared by your family members.
make someone's blood boil
: to make someone very angry
make someone's blood curdleormake someone's blood run cold
: to cause someone to be very afraid or disgusted
The horrible news made our blood run cold.
a ghost story that will make your blood curdle
The mere sight of a cockroach makes my blood curdle.
out for blood
◊ If you are out for blood or out for someone's blood, you are very angry and you want to kill someone or to cause someone pain or discomfort.
: to kill people violently
: to care a lot about something and work very hard for it
: to experience pleasure as a result of defeating an opponent