qat

1. And the Yemeni habit of chewing a leaf called qat, a mild stimulant not conducive to clear thinking or dynamism, is almost as pervasive as ever.
   咀嚼咔特树叶（对大脑有轻微刺激，不利于思维的清晰和活力）这种也门式习惯几乎是和以往一样普遍。

noun

1. the leaves of the shrub Catha edulis which are chewed like tobacco or used to make tea
   1. in Yemen kat is used daily by 85% of adults

   Synonym:    katkhatquatcatArabian teaAfrican tea