脑瓜顶儿 nǎoguādǐngr top of the head Origin Definitions Defs Strokes Stroke Words Sentences Sents 脑瓜顶 腦瓜頂 nǎoguādǐng top of the head the crown or uppermost part of the head儿 兒 r particleaffix [erhua suffix] A suffix attached to a word to form a retroflex ending, often indicating a small size, a sense of familiarity, or turning a word into a noun.