| A | B |
|---|
| infant | child from birth to one year of age; baby |
| large motor skills | skills that require the use of the large muscles of the body, such as the trunk, neck, arms, and legs |
| small motor skills | skills that require the use of small muscles of the body, such as those of the eyes, hands, feet, fingers, and toes |
| mitten grasp | grasp made with the palm and fingers opposing the thumb |
| pincer grasp | a refined grasp in which objects are picked up with just the thumb and forefinger |
| weaning | phasing out of taking milk from a breast or bottle |
| object permanence | concept that unseen objects have not necessarily disappeared |
| stranger anxiety | intense fear of strangers that occurs in the last half of the first year |
| separation anxiety | overwhelming fear shown by infants when their primary caregivers are not in sight |
| immunization | treatment that prevents people from developing certain diseases |
