men·tum /ˈmɛntəm/ 名詞
men·tum n. Zool. The front median plate of the labium in insects. See Labium.
3. Hence:A list of dishes form which to choose at a restaurant; a bill of fare.
n 1: a projection like a chin formed by the sepals and base of
the column in some orchids
2: the protruding part of the lower jaw [syn: chin]
3: a projection below the mouth of certain mollusks that
resembles a chin