鶴蝨 [鹤虱]

Jyutping hok6 sat1
Pinyin hè shī

Definitions (Wiktionary)
  1. noun
    Lappula myosotis
  2. noun
    The fruit of Lappula myosotis or Carpesium Abrolanoides. (An herb used in traditional Chinese medicine to kill intestinal parasites.)