3325英语网 英语单词

Proostracum的音标发音

Proostracum

英式发音:[pru:st'rækəm] 美式发音

    (n.) The anterior prolongation of the guard of the phragmocone of belemnites and allied fossil cephalopods, whether horny or calcareous. See Illust. of Phragmocone.

    录入:普勒斯顿


Proostracum