n.
Pronunciation: ' po ̇ i-z ə n
Function: noun
Etymology: Middle English, from Anglo-French poisun drink, potion, poison, from Latin potion-, potio drink ― more at POTION
Date: 13th century
1 a : a substance that through its chemical action usually kills, injures, or impairs an organism b (1) : something destructive or harmful (2) : an object of aversion or abhorrence
2 : a substance that inhibits the activity of another substance or the course of a reaction or process <a catalyst poison >