| A | B |
| toddler | one-or two-year old children |
| preschooler | children from age three to about age five, when most start going to school |
| developmentally appropriate | toys, activities, and tasks that are suitable for a child at a specific age |
| dexterity | a learning disability that prevents people from understanding printed symbols in a normal way |
| sensory integration | the process by which the brain combines information taken in through the senses to make a whole |
| night terrors | type of sleep disturbance that occurs during the first few hours of sleep, when children are deeply asleep. Children may be very upset but unable to explain whats wrong. In the morning, they usually remember nothing of the incident |
| hygiene | personal care and cleanliness |
| sphincter muscles | muscles that help regulate elimination from the bowels |
| synthetic fibers | fabrics made from chemicals, rather than from natural sources |
| flame-resistant | something that will not burn as quickly as other materials |