花心兒 huāxīnr center of a flower Definitions Defs Origin Strokes Stroke Words Sentences Sents 花心 huāxīn flower center the center of a flower, containing the reproductive organs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.