Plain-Language Decoder

Health writing is full of words that carry a precise meaning to a clinician and none at all to everyone else. This page collects the clinical words that actually appear in articles on this site and says what each one means in ordinary English.

Type part of a word to filter the list. Each entry links to the articles it turns up in.

30 words

Immunity & testing

Antibody

A protein the immune system makes to lock on to one specific germ or substance it has met before.

Used in: COVID-19 Testing

Antigen

The part of a germ or substance that the immune system recognises and reacts to. An "antigen test" looks for that part directly.

Used in: COVID-19 Testing

Vaccine

A preparation that trains the immune system to recognise a specific germ, so the body can respond faster if it meets it later.

Used in: Acceptance of the Pfizer COVID Vaccine What you… · Bringing YOUR CHILD Home · Delta Variant What you ought to Know

Booster

An additional dose of a vaccine given after the first course, to restore protection that has faded over time.

Used in: Acceptance of the Pfizer COVID Vaccine What you… · Bringing YOUR CHILD Home · Delta Variant What you ought to Know

Immunization

The process of becoming protected against a disease, usually through vaccination. Also spelled immunisation.

Used in: Teenagers How To REMAIN HEALTHY - Health and… · Unsure Concerning the COVID-19 Vaccine Speak to your… · Women's Guideline to Preventive Care - Breasts Health

Screening

Testing people who do not have symptoms, to find a condition earlier than it would otherwise be noticed.

Used in: Blood Test Lipid Panel · Depression in Kids and Teens · CARDIOVASCULAR DISEASE Assessing Your Risk

Mammogram

An X-ray image of the breast, used in screening for breast cancer.

Used in: Women's Guideline to Preventive Care - Breasts Health

Ultrasound

An imaging scan that uses sound waves rather than X-rays to produce a picture of tissue inside the body.

Used in: Screening Within Pregnancy - Genetic Screening · Your Baby's Development THE NEXT Trimester

Pregnancy & children

Trimester

One of the three roughly three-month stages a pregnancy is divided into.

Used in: Screening Within Pregnancy - Genetic Screening · Your Baby's Development THE NEXT Trimester

Gestational

Relating to the period of pregnancy. "Gestational age" means how far along a pregnancy is.

Used in: Premature Birth

Prenatal

Before birth. Prenatal care is the care given during pregnancy.

Used in: Premature Birth · Screening Within Pregnancy - Genetic Screening

Postpartum

The period after giving birth.

Used in: Bringing YOUR CHILD Home

Ovulation

The release of an egg from an ovary, part of the menstrual cycle.

Used in: Busting Period Myths

Pediatric

Relating to the medical care of children. Also spelled paediatric.

Used in: Patient Story Child With Cancer Maintains Standard of… · Patient Story Physical Therapy Helps Teenager Go back…

Encopresis

The medical name for repeated, involuntary stool soiling in a child old enough to be toilet-trained.

Used in: Stool Soiling and Constipation inside Children

Constipation

Passing stools less often than usual, or with difficulty because they are hard or dry.

Used in: Cholesterol-lowering Medicines · Stool Soiling and Constipation inside Children

Body & long-term conditions

Cholesterol

A fatty substance carried in the blood. The body needs some of it; a blood test reports how much there is and in what form.

Used in: Blood Test Lipid Panel · Bringing YOUR CHILD Home · Busting Period Myths

Cardiovascular

Relating to the heart and the blood vessels.

Used in: Artificial Hydration and Nutrition · Blood Test Lipid Panel · Bringing YOUR CHILD Home

Respiratory

Relating to breathing — the lungs and airways.

Used in: Patient Tale Physical Therapy Helps Cyclist Overcome Problems… · Vacationing Safely During COVID-19

Chronic

Long-lasting or persistent. The opposite of acute, which means short and sudden.

Used in: Blood Test Lipid Panel · Patient Story Man Who Lost 300 Pounds Credits… · Patient Story Physical Therapy Helps Teenager Go back…

Inflammation

The body's reaction to injury or infection, which can show as redness, heat, swelling or pain.

Used in: Acceptance of the Pfizer COVID Vaccine What you… · Artificial Hydration and Nutrition · Spider Bites

Diabetes

A condition in which the body cannot properly control the level of sugar (glucose) in the blood.

Used in: Blood Test Lipid Panel · CBD Oil · Cholesterol as well as your Child

Dehydration

Not having enough fluid in the body.

Used in: Artificial Hydration and Nutrition · Bringing YOUR CHILD Home

Fever

A body temperature above the normal range, often a sign that the body is responding to an infection.

Used in: Acceptance of the Pfizer COVID Vaccine What you… · Bringing YOUR CHILD Home · How exactly to Treat a Cold Sore

Antibiotic

A medicine that treats infections caused by bacteria. It has no effect on viruses.

Used in: Spider Bites

Antiviral

A medicine that acts against viruses.

Used in: How exactly to Treat a Cold Sore

Mental health

Depression

A persistent low mood and loss of interest, lasting weeks or longer and affecting daily life — distinct from ordinary sadness.

Used in: Depression in Kids and Teens · Mental Health Myths End the Stigma · Patient Story Medicare Treatment Cap Results in More…

Anxiety

Worry or fear that persists, is out of proportion to the situation, or gets in the way of daily life.

Used in: Caring for a member of family Who Has… · Mental Health Myths End the Stigma · Patient Story Medicare Treatment Cap Results in More…

Stigma

The negative attitudes attached to a condition, which can discourage people from talking about it or seeking help.

Used in: Mental Health Myths End the Stigma · Talking to YOUR PHYSICIAN About Your Mental Health

Therapy

Treatment intended to relieve or manage a condition — the word covers talking therapies and physical therapy alike.

Used in: CBD Oil · How exactly to Treat a Cold Sore · Mental Health Myths End the Stigma

These are explanations of what the words mean, nothing more. They are not advice about a condition, a test result or a treatment — for that, speak to a doctor or pharmacist. Nothing you type here leaves your browser.