tobacco has definitions from the fields of pharmacology,botany
1
[ noun ] (pharmacology) leaves of the tobacco plant dried and prepared for smoking or ingestion

Synonyms

baccy

Used in print

(Tristram Coffin, Not to the Swift....)

Al_'s_Little_Cafe was small , dark , narrow , and filled with the mingled scent of beer , tobacco smoke , and Italian cooking .

2
[ noun ] (botany) aromatic annual or perennial herbs and shrubs
*