Listed are terms relevant to the indexing of professional materials in the field of exceptional child education. Entries are approved descriptors appearing in the "Thesaurus of ERIC Descriptors" used by the Educational Resources Information Center (ERIC) Clearinghouses, and were selected on the basis of particular need to the Clearinghouse on Exceptional Children. For selected terms, additional information is provided in scope notes, which define the term, clarify specific usage, or indicate selected similar terms. (First edition of thesaurus entered as ED 042 320, EC 030 105.) (KW)