Click any word in a definition or example to find the entry for that word
a medical condition in which a woman who is not pregnant does not menstruate (=produce a flow of blood once a month)
a medical condition in which your blood contains too few red blood cells (=the cells that carry oxygen through the body)
a serious medical reaction caused by someone eating or touching something that they are allergic to (=something that makes them ill). Common causes are nuts, eggs, and drugs such as penicillin.
a serious swelling in the wall of an artery (=tube carrying blood around the body)
a serious medical condition in which the sides of the arteries become thick, hard, and stiff, so that your heart has to work harder to force blood through your body
a medical condition affecting your joints (=the place where two bones meet) making them very swollen and painful
a problem in the development of a child's brain that can cause difficulty in communicating with and understanding other people. It is at the less severe end of a range of problems called Autism Spectrum Disorder.
a problem in the development of a child's brain that can cause serious difficulty in communicating and forming relationships with other people. It is at the more severe end of a range of problems called Autism Spectrum Disorder.
a serious and painful condition that divers get if they come up from under the water too quickly
a medical condition in which your nose and throat become blocked with a thick liquid called mucus, usually when you have a cold
a medical condition in which the body cannot digest food (=use and get rid of it properly) that contains gluten (=wheat protein)
a painful medical condition that affects your colon (=the tube that takes waste food out of your body)
medical a medical condition in which you have very small insects in your pubic hair
a serious medical condition that affects divers who come up to the surface of water too quickly
a serious medical condition in which a clot (=mass of thick blood) forms in a vein or artery
a serious medical condition caused by drinking too much alcohol. Delirium tremens is often called the DTs.
a serious medical condition in which your body does not produce enough insulin to reduce the amount of sugar in the blood
a medical condition that someone is born with, that makes them develop in a different way from most people, mentally and physically. Down’s syndrome is often simply called Down’s.
a medical condition in which a pregnant woman with high blood pressure has convulsions (=violent uncontrolled movements)
a medical condition that makes your skin dry, sore, and itchy
a small hard mass that can form in your gall bladder
a medical condition that makes your gums painful
a medical condition in which a thick substance inside your ear makes it difficult for you to hear. It mainly affects young children.
a serious form of epilepsy
painful swollen areas around your anus (=the hole where solid waste comes out of your body). An informal name for haemorrhoids is piles.
a medical condition in which your breath has a very unpleasant smell. A more usual word is bad breath.
a medical condition caused by pollen (=powder produced by flowers) that affects your nose and eyes as if you had a bad cold
a medical condition in which an organ pushes itself through the wall of muscles around it
a medical condition in which you get red itchy spots on your skin, often because you have eaten a particular food. The medical name for this is urticaria.
a condition in which your blood pressure is extremely high
a medical condition in which someone has a low level of potassium in their blood
a medical condition in which a man is not able to have sex because his penis does not stay hard
a very bad headache that often makes you unable to bear strong light
a type of epilepsy that is less serious than grand mal
infection of your blood or body tissues, especially when this is serious and could kill you
a painful medical condition affecting your back, in which one of the parts that connect the bones in your spine has moved out of its usual place
a serious medical condition in which someone’s spinal cord is damaged, making them paralysed (=unable to move parts of their body)
a medical condition in which blood is suddenly blocked and cannot reach the brain, or in which a blood vessel in the brain breaks, often causing a loss of the ability to speak or to move particular muscles
a disease similar to flu that spreads quickly from one person to another and causes problems such as a sore throat and cough, thought to be related to a virus which infects pigs
a condition in which two or more of the five senses that most people experience separately are mixed so that, for example, a person may see colour when they hear a particular sound or read a particular word
a serious medical condition in which your blood gets thicker and forms a clot that stops the blood flowing normally
a sore area on the inside of an organ in your body or on your skin that sometimes bleeds or produces a poisonous substance
a medical condition in which the veins in your legs become swollen and sore
a form of machine learning which incorporates the use of neural networksBuzzWord Article
a general election … that is called earlier than expectedadd a word
A must for anyone with an interest in the changing face of language. The Macmillan Dictionary blog explores English as it is spoken around the world today.global English and language change from our blog