资料来源 : Webster's Revised Unabridged Dictionary (1913)

Ramtil \Ram"til\, n. [Bengali ram-til.]
   A tropical African asteraceous shrub ({Guizotia abyssinica})
   cultivated for its seeds (called

   {ramtil, or niger},

   {seeds}) which yield a valuable oil used for food and as an
      illuminant.