meerschaum

n (also ,meerschaum `pipe) tobacco pipe with a bowl made of a type of white clay 海泡石烟斗.

medico, medieval, medieval (also mediaeval), mediocre, mediocrity, meditate, meditation, meditative, meditatively, Mediterranean, Mediterranean Sea, medium, medium wave (abbr 缩写 MW), medium-sized, medlar, medley, Medusa, meek, meekly, meekness, meet, meet up with, meet with, meeting, meeting-house, meeting-place, mega-, megacycle, megadeath, megahertz, megalith, megalithic, megalomania, megalomaniac, megaphone, megaton, meiosis, melancholia, melancholic, melancholy,