Yeast is called nidhi in Tamil.
Iron- Irumpu (Tamil)
Amethyst is cukantiyum in Tamil.
Brinjal is called "kathirikkai" in Tamil.
buckwheat, its called Papparai in Tamil and it is a minor millet.
An ant is called "எறுமை" (erumai) in Tamil.
Ajwain is called "Omam" in Tamil.
Mint is called "புதினா" (Pudhina) in Tamil.
Watercress is called ativerai in Tamil.
IN slang tamil its called as " kaai" in tamil its called as " marbagam"
gall bladder called in Tamil is pithaneerpai.
Belpatra is called "Vilvam" in Tamil.