FROM STRONG’S HEBREW DICTIONARY (1890)

Strong’s Hebrew Dictionary (1890) — public domain, printed whole.

ro'sh roshe — or rowsh (Deut. 32:32) {roshe}; apparently the same as 7218; a poisonous plant, probably the poppy (from its conspicuous head); generally poison (even of serpents):--gall, hemlock, poison, venom.

see HEBREW for 07218