\March"pane`\, n. [Cf. It. marzapane,Sp. pan,. massepain, prob. fr. L. maza frumenty (Gr. ma^za) + L. panis bread; but perh. the first part of the word is from the name of the inventor.] A kind of sweet bread or biscuit; a cake of pounded almonds and sugar. [Obs.]