prostomium
英 [prəʊ'stəʊmɪəm]美 [pro'stomiəm]
n. [无脊椎] 口前叶
英文词源
prostomium (n.)
1870, Latinized form of Greek prostomion "fore-mouth, something before the mouth," from pro "before" (see pro-) + stoma "mouth" (see stoma).
带prostomium字词语
带prostomium字成语