Sentence:  Preparatory to this he invited some of his friends to a banquet, which is thus taken off by one of the daily papers : 'Last evening a party of gentlemen ate a &#39;<WSD>brainial</WSD>&#39; dinner at Jones&#39;s restaurant, in Broadway, their host being Dr. T. S. Lambert.' 
Meaning of the word marked with <WSD> tags:  Brainy; smart, pertaining to or exhibiting intellect.