meerschaum

meerschaum
[ˈmɪəʃɔːm, -ʃəm]
noun
  1. [mass noun]a soft white clay-like material consisting of hydrated magnesium silicate, found chiefly in Turkey
    海泡石
    ■(亦作 meerschaum pipe)[count noun]tobacco pipe with the bowl made from this
    海泡石烟斗
语源
  1. late 18th cent.: from German, literally sea-foam', from Meer 'sea' + Schaum 'foam', translation of Persian kef-i-daryā (alluding to the frothy appearance of the silicate)
英语宝典
考试词汇表