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.
1. in physiology a muscle which in contracting to move a part is opposed by another muscle (the antagonist). 2. in pharmacology, a drug which has affinity for the cellular receptors of another drug or natural substance and which produces a physiological effect. adrenergic agonist (2) see adrenergic agents.