Definition of sciatica cress in English:

sciatica cress

noun

rare
  • Any of several plants of the family Brassicaceae (Cruciferae) supposed to be effective in the treatment of sciatica; especially any of several pepperworts (genus Lepidium); also in plural with singular concord.

Origin

Mid 16th century; earliest use found in William Turner (d. 1568), naturalist and religious controversialist.