savant

1. N-COUNT A savant is a person of great learning or natural ability. 學者; 專家[正式]

...the opinion of savants on the composition of the lunar surface. ...專家們對於月球表麪成分的意見。

2. N-COUNT You can refer to someone as an autistic savant if they seem to be less intelligent than normal people but are unusually good at doing one particular thing. 自閉症特才