【化】 pre-emergence herbicide
bud; burgeon; gemma; shoot; sprout
【医】 blasto-; bud; gemma
former; forward; front; preceding; priority
【医】 a.; ante-; antero-; fore-; pro-; proso-; ventri-; ventro-
herbicide; weedicide
【化】 herbicide; weed killer; weedicide