Every medical and technical term used in this guide, in plain words.
- 1st, 2nd and 3rd order effects
- A way of thinking through consequences. The 1st order effect is the direct result of a choice, the 2nd order effect is what that result leads to, and the 3rd order effect is the longer-term ripple.
- AAP
- American Academy of Pediatrics, the main professional association of US children's doctors. Its guidelines are used widely.
- Absolute risk and relative risk
- Absolute risk is how many people out of 100 are affected. Relative risk is how much that number changes compared with another option, often as a percentage, and can sound much bigger.
- Absorbent mind
- Maria Montessori's term for the way young children take in language, movement and culture effortlessly from the world around them.
- ACOG
- American College of Obstetricians and Gynecologists, the main US professional association of doctors who care for pregnancy and birth.
- Amniotic fluid
- The fluid that surrounds the baby in the uterus.
- Amniotomy
- Breaking the bag of waters around the baby with a small hook, to start or speed up labour.
- Apgar score
- A quick check of a newborn at 1 and 5 minutes after birth: breathing, heart rate, color, muscle tone and reflexes, scored from 0 to 10.
- Assisted birth
- A vaginal birth helped by a vacuum cup or forceps on the baby's head.
- Attachment
- The deep emotional bond between a child and their caregivers. A securely attached child trusts their caregivers to respond.
- Baby-led weaning (BLW)
- Starting solid food with soft finger foods that the baby feeds to themselves, instead of spoon-fed purees.
- BRAIN questions
- A checklist for any medical decision: Benefits, Risks, Alternatives, Intuition, and what happens if we do Nothing for now.
- Caesarean (C-section)
- Birth through a surgical cut in the belly and uterus.
- CDC
- US Centers for Disease Control and Prevention, the national public health agency.
- Cervical ripening
- Softening and opening the cervix with medicine or a small balloon, usually the first step of an induction.
- Cervix
- The lower opening of the uterus. It thins and opens to about 10 cm during labour.
- Cluster feeding
- Many feeds close together, often in the evening. Normal, especially in the first weeks and during growth spurts.
- Cochrane review
- A summary of all good-quality trials on a health question, produced by the independent Cochrane network. Considered among the most reliable forms of evidence.
- Complementary feeding
- Foods given alongside breast milk or formula, starting around 6 months.
- Counter-pressure
- Firm, steady pressure with a hand or tennis ball on the lower back or hips during a contraction.
- CPSC
- US Consumer Product Safety Commission, which sets and enforces safety rules for products like cribs and baby gear.
- Diastasis recti
- A widening gap between the two sides of the "six-pack" abdominal muscles, common in late pregnancy and after birth.
- Doula
- A trained, non-medical companion who supports a woman and her partner during labour (a birth doula) or at home after birth (a postpartum doula).
- Electronic fetal monitoring
- Recording the baby's heart rate and contractions with belts on the belly. Continuous monitoring records the whole time; intermittent monitoring checks at intervals.
- Elimination communication (EC)
- Helping a baby pee and poop in a potty from early infancy by learning their timing and signals and using a cue sound.
- Engorgement
- Breasts that are swollen, hard and overfull, usually when milk comes in around day 3 to 5.
- Epidural
- Pain relief medicine delivered through a thin tube in the lower back during labour. The most effective form of labour pain relief.
- Epigenetic marks
- Chemical tags on DNA that switch genes on or off without changing the genes themselves.
- Episiotomy
- A cut made to widen the vaginal opening during birth. No longer recommended as a routine procedure.
- FDA
- US Food and Drug Administration, which regulates food (including infant formula) and medicines.
- Gestational diabetes (GDM)
- High blood sugar that starts during pregnancy. Usually tested for at 24 to 28 weeks.
- GOTS
- Global Organic Textile Standard: a certification for textiles made with organic fibers and processed with restricted chemicals.
- GREENGUARD Gold
- A certification for products, such as mattresses and furniture, that release low levels of chemicals into room air.
- Hip dysplasia
- A hip joint that forms too loosely and can dislocate. Linked to positions that hold a baby's legs straight and together.
- IBCLC
- International Board Certified Lactation Consultant, the highest professional credential for breastfeeding support.
- IHDI
- International Hip Dysplasia Institute, a nonprofit that educates families about healthy hip development.
- Induction
- Starting labour with medical help instead of waiting for it to begin on its own.
- Jaundice
- Yellowish skin or eyes in a newborn, caused by a pigment (bilirubin) the young liver can't clear fast enough yet. Common and usually mild.
- LATCH and ISOFIX
- Built-in metal anchors in cars (LATCH in the US, ISOFIX in Europe) that make it easier to install a car seat tightly.
- Listeria
- Bacteria found in some cold and unpasteurized foods. Rare, but dangerous in pregnancy.
- Lochia
- The vaginal bleeding after birth, which lasts 2 to 6 weeks.
- Meconium
- A newborn's first poop: black, sticky and tar-like.
- Membrane sweep
- During a vaginal exam, a finger gently separates the membranes from the cervix to encourage labour to start.
- Myelin
- The insulating layer around nerve fibers that speeds up signals in the brain.
- Neural tube defect
- A serious birth defect of the brain or spine, such as spina bifida. Folic acid prevents most of them.
- NHS
- National Health Service, the UK's public health system. Its guidance is widely used.
- OEKO-TEX Standard 100
- A certification showing that a finished textile product was tested for harmful substances.
- Oxytocin
- The hormone that drives contractions. A synthetic version is given through an IV to start or strengthen labour.
- Parentese
- The slower, higher-pitched, sing-song way people naturally speak to babies. It helps them learn language.
- Perineum
- The skin and muscle between the vagina and the anus, which stretches during birth.
- Phototherapy
- Treatment for jaundice in which the baby lies under special blue lights, usually for a day or two.
- Placenta
- The organ that grows in the uterus during pregnancy and feeds the baby through the umbilical cord.
- Postpartum depression (PPD) and anxiety (PPA)
- Depression or anxiety during pregnancy or in the first year after birth. Common in mothers and fathers, and treatable.
- Practical life
- Montessori term for real everyday tasks a child can do, such as pouring, wiping, dressing and helping cook.
- Preeclampsia
- A dangerous rise in blood pressure during pregnancy or up to 6 weeks after birth that can damage organs.
- Preterm birth
- Birth before 37 weeks of pregnancy.
- Prolapse
- When pelvic organs, such as the bladder or uterus, sag down into the vagina.
- Randomized trial
- A study that assigns people to different approaches by chance, which makes it the most reliable way to show cause and effect.
- RIE
- Resources for Infant Educarers, Magda Gerber's approach of respectful care and uninterrupted free play.
- RSV
- Respiratory syncytial virus, a common virus that can cause serious breathing infections in babies.
- Sensitive periods
- Montessori term for times when a child shows intense interest in something, such as order, movement or language. Best read as periods of strong interest, not deadlines.
- Serve and return
- The back-and-forth between a young child and an adult: the child "serves" with a look, sound or gesture, and the adult "returns" it.
- SIDS and SUID
- Sudden infant death syndrome (SIDS) is the unexplained death of a seemingly healthy baby, usually during sleep. Sudden unexpected infant death (SUID) is the wider group that includes SIDS and accidental suffocation.
- Skin-to-skin
- Holding your naked baby against your bare chest, covered with a blanket.
- Symbiotic period
- Montessori term for the first 6 to 8 weeks after birth, when parent and baby adapt to each other.
- Tdap
- A vaccine against tetanus, diphtheria and pertussis (whooping cough), given in pregnancy so protection passes to the baby.
- TENS
- Transcutaneous electrical nerve stimulation: a small device that sends mild electrical pulses through pads on the skin to ease pain.
- TOG rating
- A measure of how warm a fabric is, used for sleep sacks.
- Topponcino
- A thin, firm, quilted cotton pad the size of a newborn, used for holding and passing the baby while awake. Not for sleep.
- Trimester
- One of the three roughly 3-month stages of pregnancy: weeks 1 to 13, 14 to 27, and 28 to birth.
- Vitamin K shot
- A standard injection given to newborns to prevent rare but dangerous bleeding.
- Wake window
- How long a baby can comfortably stay awake between sleeps.
- WHO
- World Health Organization, the United Nations' health agency.