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prostomium (n.)
[prostomium 词源字典]
1870, Latinized form of Greek
prostomion
"fore-mouth, something before the mouth," from
pro
"before" (see
pro-
) +
stoma
"mouth" (see
stoma
).
[prostomium etymology, prostomium origin, 英语词源]
[prostomium 词源字典]