Many children do develop speech sounds over time but those who do not often need the services of an SLP to learn correct speech sounds. Some speech sound errors can result from physical problems, such as: 1  developmental disorders (e.g.,autism). 2  genetic syndromes (e.g., Down syndrome).
adjective. 1  The definition of anergic is a condition in which the body fails to react to an injected antigen. 2  The definition of anergic is a condition in which the body fails to react to an injected antigen. A child whose body does not react properly to an immunization is anergic.
Adrenergic agonist. An adrenergic agonist is a drug that stimulates a response from the adrenergic receptors. The five main categories of adrenergic receptors are: Î±1, Î±2, Î²1, Î²2, and Î²3, although there are more subtypes, and agonists vary in specificity between these receptors, and may be classified respectively.