/'sævənt; [US] sæ'vɑ:nt; sæ`vɑnt/
n (fml 文) person of great learning 博学之士; 学者; 专家.

n[C]formal
[Date: 1700-1800; Language: French;Origin: , present participle of savoir 'to know']
someone who knows a lot about a subject
someone who has mental problems and may have lower intelligence than average, but who can do one thing very well, such as adding numbers very quickly