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Definition: Late talker is a term used to describe children between the ages of 18 to 20 months who have fewer than 10 words and children between the ages of 21 to 30 months who have fewer than 50 words and/or no two-word combinations.
Context: Mae ymchwil wedi dangos bod 'plant sy'n araf yn siarad' yn grŵp amrywiol â nodweddion unigol ac amgylcheddol gwahanol.
