| ARC-ST | Accreditation Review Council for Educational Programs in Surgical Technology |
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| EA | early antigen; educational age; egg albumin; electric affinity; electrical activity; electroacupunct... |
| ECFMS | Educational Council for Foreign Medical Students |
| EQ | educational quotient; encephalization quotient; energy quotient; equal to |
| ET | educational therapy; effective temperature; ejection time; embryo transfer; endothelin; endotoxin; e... |
| language development | The gradual expansion in complexity and meaning of symbols and sounds as perceived and interpreted by the individual through a maturational and learning process. Stages in development include babbling, cooing, word imitation with cognition, and use of short sentences. (12 Dec 1998) |
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| language development disorders | Failure to understand or speak the language at the expected age. Causal factors include slow maturation, hearing loss, brain injury, mental retardation and emotional disorders. (12 Dec 1998) |
| library collection development | Development of a library collection, including the determination and coordination of selection policy, assessment of needs of users and potential users, collection use studies, collection evaluation, identification of collection needs, selection of materials, planning for resource sharing, collection maintenance and weeding, and budgeting. (12 Dec 1998) |