noun

a common blood group in the abo system

noun

the system that divides human blood into four main groups, A, B, AB, and O

noun

a substance that prevents blood from coagulating (=becoming more solid)

noun

the main artery that carries blood with a high oxygen level from your heart to other parts of your body

noun

one of the tubes in your body that carries blood from your heart to the rest of your body. A tube that returns blood to your heart is called a vein.

noun

an amount of cholesterol and other substances that gradually form on the inside wall of an artery and can block the flow of blood

noun

each of the two upper spaces in your heart, which force blood into your ventricles (=lower spaces)

noun

a common blood group

noun

the series of regular sounds or movements as your heart pumps blood around your body

noun

one of the regular sounds or movements of your heart

noun

the process of losing blood from your body, for example from a cut

noun

the red liquid that flows around inside your body

noun

the cells that move around in your blood. The two main groups of blood cells are called red blood cells and white blood cells.

noun

a soft mass of almost solid blood that blocks a tube in your body

noun

the process by which blood becomes thick and stops flowing, forming a solid cover over any place where your skin has been cut or broken

noun

the number of red or white cells in your blood, or a test to measure this, for example in order to find out the state of your immune system

noun

one of the groups that human blood can be divided into. The four main groups are A, B, AB, and O. The American word is blood type.

noun

the pressure at which blood flows from your heart around your body. Blood pressure that is either very high or very low can be dangerous to your health.

noun

substances that can be taken from the blood of one person and used in the medical treatment of someone else

noun

the blood that moves around your body

noun

sugars such as glucose that are present in healthy blood

noun

a blood group

noun

a tube that carries blood around your body, such as a vein or artery

noun

the smallest type of blood vessel, with a wall that is only one cell thick. It carries blood to and from individual cells in your body.

noun

a heart attack

prefix

relating to the heart: used with some adjectives and nouns

noun

the area of medicine that deals with the heart and the diseases that affect it

noun

one of the two main arteries on each side of your neck that carry blood from your heart to your head

noun

a substance that is found in the blood and the cells of the body. It can cause diseases of the heart and the arteries if there is too much of it

noun

the continuous movement of blood around your body

noun

a lump consisting of blood or another liquid that has become thick

noun

a heart attack

noun

either of the two arteries that carry blood to the heart

noun

a heart attack in which the blood supply to the heart is blocked

noun

one of the white or red cells in your blood

noun

something such as a blood clot (=a mass of blood cells) that blocks a blood vessel in your body

noun

a series of quick movements of the heart, caused by excitement or nervousness

noun

a medical condition in which your heart beats faster than normal

noun

a natural protein substance that is part of blood, and that protects you against some types of disease

noun

blood from an injured person that is thick because it is partly dried

prefix

relating to blood: used with some nouns and adjectives

noun

a protein in red blood cells that carries oxygen from the lungs to all parts of the body

noun

the organ in your chest that makes blood flow around your body

noun

an occasion when someone suddenly has a lot of pain in their chest and their heart stops working

noun

the movement or sound of your heart as it makes blood flow round your body

noun

a situation in which someone’s heart stops working and they die

the American spelling of haemoglobin

noun

a condition in which your blood pressure is extremely high

noun

a situation in which blood cannot get to an area of tissue so that the tissue dies

noun

a major vein in your neck that carries blood from your head to your heart. The jugular is also called the jugular vein.

noun

a white blood cell

another spelling of leucocyte

noun

someone’s blood

noun

one of several small organs in your body that help to remove harmful bacteria from your blood

noun

a white blood cell that attacks antigens (=harmful substances that the body reacts to)

noun

an unusual quiet sound made by your heart that may be a sign of disease or damage

noun

a common blood group in the ABO system

noun

the movements of your heart when it beats faster than usual

noun

the yellowish liquid that is part of blood

noun

a small piece of a cell in your blood that helps it to clot (=form a thick mass)

noun

a place on your body where you press to stop your blood flowing

noun

one of two arteries (=tubes) that carry blood from the right ventricle of your heart to your lungs

noun

one of four veins (=tubes) that carry blood from your lungs to the left atrium of your heart

noun

a strong regular movement like that of your heart

noun

the regular movement of blood as the heart pumps it round the body

noun

the rate of someone’s pulse, especially the number of movements that you can feel in a minute

noun

a blood cell that carries oxygen

noun

a substance found in red blood cells. Most people are Rhesus positive (=they have the Rhesus factor) and cannot share blood with people who are Rhesus negative (=who do not have the Rhesus factor).

noun

rhesus factor

noun

the thin yellow liquid that is part of blood and that separates from it when it clots (=becomes thick and hard)

noun

the organ in your body that removes dead red cells from your blood and produces white cells

noun

your heart

noun

one of the tubes in your body that carry blood to your heart. A tube that carries blood away from your heart is an artery.

noun

one of the two large veins (=tubes) that carry blood into the right side of your heart

noun

one of the two lower parts of your heart that moves blood to the rest of your body

noun

the amount of a virus that someone has in their blood

noun

the signs that show you are alive, for example your breathing or your heartbeat

noun

a type of blood cell that protects your body against infection