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digraph

n. a combination of two letters or other symbols used to represent a single speech sound, for example, ph in digraph or ea in head. The corresponding term trigraph refers to three letters or symbols, for example, tth in Matthew. See also diphthong.

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Psychology term of the day

December 30th 2024

unspecified mental retardation

unspecified mental retardation

the diagnosis made when an individual is presumed to have mental retardation but is too severely impaired or uncooperative to be evaluated through the use of standard intelligence tests and adaptive behavior measures. The DSM–IV–TR designation is mental retardation, severity unspecified. In DSM–5, the term is unspecified intellectual disability.