| A | B |
| Bottle rot: | when a tooth or multiple teeth decay and create cavities caused by bacteria built up from sugary liquids that come from some milks and other beverages |
| Cephalocaudal | refers to the development of an infant, wherein the development takes place at the top of the body and then gradually throughout the infant’s body |
| Colic | predictable periods of significant distress in an otherwise well-fed, health baby |
| Developmental milestones | behaviors or physical skills see in children as they grow and develop |
| Fine motor skills | the coordination of small muscles, such as those in the fingers and toes |
| Grasp reflex | occurs if a person places a finger on the infant’s open palm; infants’ hand will close around the finger; seen at birth |
| Gross motor skills | : the coordination of large muscles, such as those in the arms and legs |
| Hand-eye coordination | ability of the vision system to coordinate the information received through the eyes to control, guide, and direct the hands in the accomplishment of a given task |
| Height | the measurement from the top of the head to sole of the foot |
| Immunizations | when the body builds up an ability to fight off infections and diseases through vaccines or other exposure methods |
| Infant: | a child in the first year of life |
| Large muscles | bigger muscles in the body such as legs, arms, back, and chest |
| Moro reflex | when an infant is startled or feels like they are falling, the infant will get a startled look, and fling arms out sideways with palms up and thumbs flexed; present at birth |
| Onesie: | infant one-piece close-fitting lightweight garment, usually having sleeves but leaving the legs uncovered and fastening with snaps at the crotch |
| Physical development | the growth and development of both the brain and body; advancements and refinements of motor skills |
| Pincer grasp | using the forefinger or middle finger and thumb to pinch or grasp an object |
| Proximodistal | when children learn to move their heads, trunks, arms, and legs before learning to move their hands and feet |
| PURPLE cry | represents Peak of crying, Unexpected, Resists soothing, Pain-like face, Long lasting, and Evening, to describe a phase of uncontrollable infant crying |