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| a chattering or flighty, light-headed person. |
| a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question. |
learning disability n.
A disorder in the basic cognitive and psychological processes involved in using language or performing mathematical calculations, affecting persons of normal intelligence and not the result of emotional disturbance or impairment of sight or hearing.
| learning disability (lûr'nĭng) Pronunciation Key
Any of various disabilities of the basic cognitive and psychological processes involved in using language or performing mathematical calculations. Learning disabilities are not caused by low intelligence, emotional disturbance, or physical impairment (as of hearing). dyslexia is a common learning disability. |